91527480 has 192 divisors, whose sum is σ = 336117600. Its totient is φ = 21396480.

The previous prime is 91527461. The next prime is 91527481. The reversal of 91527480 is 8472519.

91527480 is a `hidden beast` number, since 91 + 527 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91527481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114442 + ... + 115238.

Almost surely, 2^91527480 is an apocalyptic number.

91527480 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91527480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168058800).

91527480 is an abundant number, since it is smaller than the sum of its proper divisors (244590120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91527480 is a wasteful number, since it uses less digits than its factorization.

91527480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 91527480 is about 9566.9995296331. Note that the first 3 decimals coincide. The cubic root of 91527480 is about 450.6615455032.

Adding to 91527480 its reverse (8472519), we get a palindrome (99999999).

The spelling of 91527480 in words is "ninety-one million, five hundred twenty-seven thousand, four hundred eighty".