73979712 has 42 divisors (see below), whose sum is σ = 212051138. Its totient is φ = 24659712.

The previous prime is 73979639. The next prime is 73979723. The reversal of 73979712 is 21797937.

It can be written as a sum of positive squares in only one way, i.e., 43243776 + 30735936 = 6576^2 + 5544^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63643 + ... + 64794.

Almost surely, 2^73979712 is an apocalyptic number.

73979712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73979712 is an abundant number, since it is smaller than the sum of its proper divisors (138071426).

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

73979712 is a wasteful number, since it uses less digits than its factorization.

73979712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128455 (or 128442 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 73979712 is about 8601.1459701600. The cubic root of 73979712 is about 419.7952743740.

It can be divided in two parts, 73979 and 712, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 73979712 in words is "seventy-three million, nine hundred seventy-nine thousand, seven hundred twelve".