72626031 has 16 divisors (see below), whose sum is σ = 108165120. Its totient is φ = 48160440.

The previous prime is 72625981. The next prime is 72626033. The reversal of 72626031 is 13062627.

It is a happy number.

72626031 is a `hidden beast` number, since 7 + 2 + 626 + 0 + 31 = 666.

It is not a de Polignac number, because 72626031 - 2⁶ = 72625967 is a prime.

It is a super-2 number, since 2×72626031² = 10549080757625922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 72625986 and 72626004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72626033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1885 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (6760320).

Almost surely, 2^72626031 is an apocalyptic number.

72626031 is a deficient number, since it is larger than the sum of its proper divisors (35539089).

72626031 is a wasteful number, since it uses less digits than its factorization.

72626031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14283 (or 14277 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 72626031 is about 8522.0907645953. The cubic root of 72626031 is about 417.2190247356.

Adding to 72626031 its reverse (13062627), we get a palindrome (85688658).

The spelling of 72626031 in words is "seventy-two million, six hundred twenty-six thousand, thirty-one".