72620847 has 16 divisors (see below), whose sum is σ = 115862880. Its totient is φ = 44689536.

The previous prime is 72620839. The next prime is 72620857. The reversal of 72620847 is 74802627.

It is not a de Polignac number, because 72620847 - 2³ = 72620839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72620827) 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 15 ways as a sum of consecutive naturals, for example, 103098 + ... + 103799.

It is an arithmetic number, because the mean of its divisors is an integer number (7241430).

Almost surely, 2^72620847 is an apocalyptic number.

72620847 is a deficient number, since it is larger than the sum of its proper divisors (43242033).

72620847 is a wasteful number, since it uses less digits than its factorization.

72620847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206919 (or 206913 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 72620847 is about 8521.7866084525. The cubic root of 72620847 is about 417.2090975563.

The spelling of 72620847 in words is "seventy-two million, six hundred twenty thousand, eight hundred forty-seven".