91032433 has 4 divisors (see below), whose sum is σ = 96387300. Its totient is φ = 85677568.

The previous prime is 91032377. The next prime is 91032443. The reversal of 91032433 is 33423019.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51380224 + 39652209 = 7168^2 + 6297^2 .

It is a cyclic number.

It is not a de Polignac number, because 91032433 - 2⁹ = 91031921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91032398 and 91032407.

It is not an unprimeable number, because it can be changed into a prime (91032443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677408 + ... + 2677441.

It is an arithmetic number, because the mean of its divisors is an integer number (24096825).

Almost surely, 2^91032433 is an apocalyptic number.

It is an amenable number.

91032433 is a deficient number, since it is larger than the sum of its proper divisors (5354867).

91032433 is a wasteful number, since it uses less digits than its factorization.

91032433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354866.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 91032433 is about 9541.0918138335. The cubic root of 91032433 is about 449.8475747133.

The spelling of 91032433 in words is "ninety-one million, thirty-two thousand, four hundred thirty-three".