91240704 has 81 divisors (see below), whose sum is σ = 264398043. Its totient is φ = 30260736.

The previous prime is 91240691. The next prime is 91240741. The reversal of 91240704 is 40704219.

It is a happy number.

The square root of 91240704 is 9552.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 458397 + ... + 458595.

Almost surely, 2^91240704 is an apocalyptic number.

91240704 is the 9552-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91240704

91240704 is an abundant number, since it is smaller than the sum of its proper divisors (173157339).

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

91240704 is an equidigital number, since it uses as much as digits as its factorization.

91240704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The cubic root of 91240704 is about 450.1903787056.

It can be divided in two parts, 912 and 40704, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 91240704 in words is "ninety-one million, two hundred forty thousand, seven hundred four".