64910634 has 16 divisors (see below), whose sum is σ = 130267872. Its totient is φ = 21562448.

The previous prime is 64910633. The next prime is 64910639. The reversal of 64910634 is 43601946.

It is a junction number, because it is equal to n+sod(n) for n = 64910595 and 64910604.

It is not an unprimeable number, because it can be changed into a prime (64910633) 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, 16704 + ... + 20219.

It is an arithmetic number, because the mean of its divisors is an integer number (8141742).

Almost surely, 2^64910634 is an apocalyptic number.

64910634 is an abundant number, since it is smaller than the sum of its proper divisors (65357238).

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

64910634 is a wasteful number, since it uses less digits than its factorization.

64910634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37221.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 64910634 is about 8056.7135979877. The cubic root of 64910634 is about 401.8882266415. Note that the first 3 decimals are identical.

The spelling of 64910634 in words is "sixty-four million, nine hundred ten thousand, six hundred thirty-four".