72976626 has 20 divisors (see below), whose sum is σ = 163522062. Its totient is φ = 24325488.

The previous prime is 72976621. The next prime is 72976627. The reversal of 72976626 is 62667927.

It can be written as a sum of positive squares in only one way, i.e., 72335025 + 641601 = 8505^2 + 801^2 .

It is not an unprimeable number, because it can be changed into a prime (72976621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 225075 + ... + 225398.

Almost surely, 2^72976626 is an apocalyptic number.

72976626 is an abundant number, since it is smaller than the sum of its proper divisors (90545436).

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

72976626 is a wasteful number, since it uses less digits than its factorization.

72976626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450487 (or 450478 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 72976626 is about 8542.6357759183. The cubic root of 72976626 is about 417.8893085411.

The spelling of 72976626 in words is "seventy-two million, nine hundred seventy-six thousand, six hundred twenty-six".