64769272 has 8 divisors (see below), whose sum is σ = 121442400. Its totient is φ = 32384632.

The previous prime is 64769231. The next prime is 64769279. The reversal of 64769272 is 27296746.

It is a tau number, because it is divible by the number of its divisors (8).

It is a pancake number, because a pancake can be divided into 64769272 parts by 11381 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64769279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4048072 + ... + 4048087.

It is an arithmetic number, because the mean of its divisors is an integer number (15180300).

Almost surely, 2^64769272 is an apocalyptic number.

It is an amenable number.

64769272 is a deficient number, since it is larger than the sum of its proper divisors (56673128).

64769272 is a wasteful number, since it uses less digits than its factorization.

64769272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096165 (or 8096161 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 64769272 is about 8047.9358844365. The cubic root of 64769272 is about 401.5962713209.

The spelling of 64769272 in words is "sixty-four million, seven hundred sixty-nine thousand, two hundred seventy-two".