64953936 has 30 divisors (see below), whose sum is σ = 181781210. Its totient is φ = 21651264.

The previous prime is 64953929. The next prime is 64953947. The reversal of 64953936 is 63935946.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37454400 + 27499536 = 6120^2 + 5244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64953891 and 64953900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225391 + ... + 225678.

Almost surely, 2^64953936 is an apocalyptic number.

It is an amenable number.

64953936 is an abundant number, since it is smaller than the sum of its proper divisors (116827274).

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

64953936 is a wasteful number, since it uses less digits than its factorization.

64953936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451083 (or 451074 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 64953936 is about 8059.4004739807. The cubic root of 64953936 is about 401.9775735614.

The spelling of 64953936 in words is "sixty-four million, nine hundred fifty-three thousand, nine hundred thirty-six".