64900423 has 4 divisors (see below), whose sum is σ = 74171920. Its totient is φ = 55628928.

The previous prime is 64900399. The next prime is 64900427. The reversal of 64900423 is 32400946.

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

It is a cyclic number.

It is not a de Polignac number, because 64900423 - 2¹³ = 64892231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64900391 and 64900400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64900427) 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, 4635738 + ... + 4635751.

It is an arithmetic number, because the mean of its divisors is an integer number (18542980).

Almost surely, 2^64900423 is an apocalyptic number.

64900423 is a deficient number, since it is larger than the sum of its proper divisors (9271497).

64900423 is an equidigital number, since it uses as much as digits as its factorization.

64900423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9271496.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 64900423 is about 8056.0798779555. The cubic root of 64900423 is about 401.8671520469.

The spelling of 64900423 in words is "sixty-four million, nine hundred thousand, four hundred twenty-three".