64253694 has 16 divisors (see below), whose sum is σ = 128659968. Its totient is φ = 21392472.

The previous prime is 64253689. The next prime is 64253699. The reversal of 64253694 is 49635246.

It is an interprime number because it is at equal distance from previous prime (64253689) and next prime (64253699).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64253699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462 + ... + 11345.

It is an arithmetic number, because the mean of its divisors is an integer number (8041248).

Almost surely, 2^64253694 is an apocalyptic number.

64253694 is an abundant number, since it is smaller than the sum of its proper divisors (64406274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64253694 is a wasteful number, since it uses less digits than its factorization.

64253694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719.

The product of its digits is 155520, while the sum is 39.

The square root of 64253694 is about 8015.8401930178. The cubic root of 64253694 is about 400.5278323428.

The spelling of 64253694 in words is "sixty-four million, two hundred fifty-three thousand, six hundred ninety-four".