72772464 has 20 divisors (see below), whose sum is σ = 187995656. Its totient is φ = 24257472.

The previous prime is 72772463. The next prime is 72772471. The reversal of 72772464 is 46427727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72772463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757999 + ... + 758094.

Almost surely, 2^72772464 is an apocalyptic number.

It is an amenable number.

72772464 is an abundant number, since it is smaller than the sum of its proper divisors (115223192).

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

72772464 is a wasteful number, since it uses less digits than its factorization.

72772464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516104 (or 1516098 counting only the distinct ones).

The product of its digits is 131712, while the sum is 39.

The square root of 72772464 is about 8530.6778159769. The cubic root of 72772464 is about 417.4992439060.

The spelling of 72772464 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred sixty-four".