64351436 has 12 divisors (see below), whose sum is σ = 115658928. Its totient is φ = 31306032.

The previous prime is 64351433. The next prime is 64351439. The reversal of 64351436 is 63415346.

It is an interprime number because it is at equal distance from previous prime (64351433) and next prime (64351439).

It is a super-2 number, since 2×64351436² = 8282214630524192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64351433) 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, 217256 + ... + 217551.

It is an arithmetic number, because the mean of its divisors is an integer number (9638244).

Almost surely, 2^64351436 is an apocalyptic number.

It is an amenable number.

64351436 is a deficient number, since it is larger than the sum of its proper divisors (51307492).

64351436 is a wasteful number, since it uses less digits than its factorization.

64351436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434848 (or 434846 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 64351436 is about 8021.9346793651. The cubic root of 64351436 is about 400.7308222672.

The spelling of 64351436 in words is "sixty-four million, three hundred fifty-one thousand, four hundred thirty-six".