91048860 has 360 divisors, whose sum is σ = 352243584. Its totient is φ = 19595520.

The previous prime is 91048849. The next prime is 91048861. The reversal of 91048860 is 6884019.

It is a happy number.

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 (91048861) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2460762 + ... + 2460798.

Almost surely, 2^91048860 is an apocalyptic number.

91048860 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 91048860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176121792).

91048860 is an abundant number, since it is smaller than the sum of its proper divisors (261194724).

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

91048860 is a wasteful number, since it uses less digits than its factorization.

91048860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 91048860 is about 9541.9526303582. The cubic root of 91048860 is about 449.8746317428.

It can be divided in two parts, 910 and 48860, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 91048860 in words is "ninety-one million, forty-eight thousand, eight hundred sixty".