91480437 has 12 divisors (see below), whose sum is σ = 132223104. Its totient is φ = 60947880.

The previous prime is 91480423. The next prime is 91480463. The reversal of 91480437 is 73408419.

It is a happy number.

It is not a de Polignac number, because 91480437 - 2⁶ = 91480373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91480937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21358 + ... + 25280.

It is an arithmetic number, because the mean of its divisors is an integer number (11018592).

Almost surely, 2^91480437 is an apocalyptic number.

It is an amenable number.

91480437 is a deficient number, since it is larger than the sum of its proper divisors (40742667).

91480437 is a wasteful number, since it uses less digits than its factorization.

91480437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520 (or 6517 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 91480437 is about 9564.5406058002. The cubic root of 91480437 is about 450.5843224138.

The spelling of 91480437 in words is "ninety-one million, four hundred eighty thousand, four hundred thirty-seven".