64674136 has 16 divisors (see below), whose sum is σ = 121551840. Its totient is φ = 32260320.

The previous prime is 64674133. The next prime is 64674143. The reversal of 64674136 is 63147646.

It is a junction number, because it is equal to n+sod(n) for n = 64674095 and 64674104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64674133) 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, 5931 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (7596990).

Almost surely, 2^64674136 is an apocalyptic number.

It is an amenable number.

64674136 is a deficient number, since it is larger than the sum of its proper divisors (56877704).

64674136 is a wasteful number, since it uses less digits than its factorization.

64674136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194 (or 19190 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 64674136 is about 8042.0231285417. The cubic root of 64674136 is about 401.3995474562.

The spelling of 64674136 in words is "sixty-four million, six hundred seventy-four thousand, one hundred thirty-six".