91023032 has 16 divisors (see below), whose sum is σ = 180707760. Its totient is φ = 42834304.

The previous prime is 91023019. The next prime is 91023047. The reversal of 91023032 is 23032019.

It is a junction number, because it is equal to n+sod(n) for n = 91022995 and 91023013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334508 + ... + 334779.

It is an arithmetic number, because the mean of its divisors is an integer number (11294235).

Almost surely, 2^91023032 is an apocalyptic number.

It is an amenable number.

91023032 is a deficient number, since it is larger than the sum of its proper divisors (89684728).

91023032 is a wasteful number, since it uses less digits than its factorization.

91023032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669310 (or 669306 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 91023032 is about 9540.5991426115. The cubic root of 91023032 is about 449.8320887944.

The spelling of 91023032 in words is "ninety-one million, twenty-three thousand, thirty-two".