91452637 has 4 divisors (see below), whose sum is σ = 92554560. Its totient is φ = 90350716.

The previous prime is 91452619. The next prime is 91452649. The reversal of 91452637 is 73625419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91452637 - 2¹⁵ = 91419869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91452596 and 91452605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91452607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550837 + ... + 551002.

It is an arithmetic number, because the mean of its divisors is an integer number (23138640).

Almost surely, 2^91452637 is an apocalyptic number.

It is an amenable number.

91452637 is a deficient number, since it is larger than the sum of its proper divisors (1101923).

91452637 is a wasteful number, since it uses less digits than its factorization.

91452637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101922.

The product of its digits is 45360, while the sum is 37.

The square root of 91452637 is about 9563.0872107286. The cubic root of 91452637 is about 450.5386750832.

The spelling of 91452637 in words is "ninety-one million, four hundred fifty-two thousand, six hundred thirty-seven".