64291612 has 24 divisors (see below), whose sum is σ = 140273280. Its totient is φ = 25048560.

The previous prime is 64291589. The next prime is 64291627. The reversal of 64291612 is 21619246.

It is a super-2 number, since 2×64291612² = 8266822747117088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104062 + ... + 104677.

It is an arithmetic number, because the mean of its divisors is an integer number (5844720).

Almost surely, 2^64291612 is an apocalyptic number.

It is an amenable number.

64291612 is an abundant number, since it is smaller than the sum of its proper divisors (75981668).

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

64291612 is a wasteful number, since it uses less digits than its factorization.

64291612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208761 (or 208759 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 64291612 is about 8018.2050360414. The cubic root of 64291612 is about 400.6066046121.

The spelling of 64291612 in words is "sixty-four million, two hundred ninety-one thousand, six hundred twelve".