64712236 has 12 divisors (see below), whose sum is σ = 113338512. Its totient is φ = 32329808.

The previous prime is 64712231. The next prime is 64712239. The reversal of 64712236 is 63221746.

It is a junction number, because it is equal to n+sod(n) for n = 64712198 and 64712207.

It is not an unprimeable number, because it can be changed into a prime (64712231) 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, 400 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (9444876).

Almost surely, 2^64712236 is an apocalyptic number.

It is an amenable number.

64712236 is a deficient number, since it is larger than the sum of its proper divisors (48626276).

64712236 is a wasteful number, since it uses less digits than its factorization.

64712236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13160 (or 13158 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 64712236 is about 8044.3915866894. The cubic root of 64712236 is about 401.4783544391.

The spelling of 64712236 in words is "sixty-four million, seven hundred twelve thousand, two hundred thirty-six".