91984245 has 32 divisors (see below), whose sum is σ = 156211200. Its totient is φ = 46119744.

The previous prime is 91984231. The next prime is 91984271. The reversal of 91984245 is 54248919.

It is not a de Polignac number, because 91984245 - 2⁵ = 91984213 is a prime.

It is a super-2 number, since 2×91984245² = 16922202656440050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91984197 and 91984206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18096 + ... + 22614.

It is an arithmetic number, because the mean of its divisors is an integer number (4881600).

Almost surely, 2^91984245 is an apocalyptic number.

It is an amenable number.

91984245 is a deficient number, since it is larger than the sum of its proper divisors (64226955).

91984245 is a wasteful number, since it uses less digits than its factorization.

91984245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609.

The product of its digits is 103680, while the sum is 42.

The square root of 91984245 is about 9590.8417253127. The cubic root of 91984245 is about 451.4099726192.

It can be divided in two parts, 91984 and 245, that added together give a palindrome (92229).

The spelling of 91984245 in words is "ninety-one million, nine hundred eighty-four thousand, two hundred forty-five".