72562979 has 6 divisors (see below), whose sum is σ = 73859460. Its totient is φ = 71268776.

The previous prime is 72562967. The next prime is 72562981. The reversal of 72562979 is 97926527.

It is a happy number.

It is not a de Polignac number, because 72562979 - 2¹² = 72558883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72562279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64877 + ... + 65985.

It is an arithmetic number, because the mean of its divisors is an integer number (12309910).

Almost surely, 2^72562979 is an apocalyptic number.

72562979 is a deficient number, since it is larger than the sum of its proper divisors (1296481).

72562979 is an frugal number, since it uses more digits than its factorization.

72562979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 1168 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 72562979 is about 8518.3906343863. The cubic root of 72562979 is about 417.0982502689.

The spelling of 72562979 in words is "seventy-two million, five hundred sixty-two thousand, nine hundred seventy-nine".