64937862 has 56 divisors (see below), whose sum is σ = 159359400. Its totient is φ = 19673280.

The previous prime is 64937861. The next prime is 64937893. The reversal of 64937862 is 26873946.

It is a super-2 number, since 2×64937862² = 8433851842262088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64937861) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14014 + ... + 18062.

Almost surely, 2^64937862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64937862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79679700).

64937862 is an abundant number, since it is smaller than the sum of its proper divisors (94421538).

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

64937862 is a wasteful number, since it uses less digits than its factorization.

64937862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4065 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 64937862 is about 8058.4031917000. The cubic root of 64937862 is about 401.9444120063.

The spelling of 64937862 in words is "sixty-four million, nine hundred thirty-seven thousand, eight hundred sixty-two".