64498923 has 40 divisors (see below), whose sum is σ = 101930400. Its totient is φ = 40563072.

The previous prime is 64498913. The next prime is 64498949. The reversal of 64498923 is 32989446.

It is not a de Polignac number, because 64498923 - 2¹⁰ = 64497899 is a prime.

It is a super-2 number, since 2×64498923² = 8320222136319858, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64498913) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 165613 + ... + 166001.

It is an arithmetic number, because the mean of its divisors is an integer number (2548260).

Almost surely, 2^64498923 is an apocalyptic number.

64498923 is a deficient number, since it is larger than the sum of its proper divisors (37431477).

64498923 is a wasteful number, since it uses less digits than its factorization.

64498923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 504 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 64498923 is about 8031.1221507334. The cubic root of 64498923 is about 401.0367335541.

The spelling of 64498923 in words is "sixty-four million, four hundred ninety-eight thousand, nine hundred twenty-three".