72951886 has 12 divisors (see below), whose sum is σ = 127293768. Its totient is φ = 31265052.

The previous prime is 72951881. The next prime is 72951899. The reversal of 72951886 is 68815927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72951881) by changing a digit.

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, 372106 + ... + 372301.

It is an arithmetic number, because the mean of its divisors is an integer number (10607814).

Almost surely, 2^72951886 is an apocalyptic number.

72951886 is a deficient number, since it is larger than the sum of its proper divisors (54341882).

72951886 is a wasteful number, since it uses less digits than its factorization.

72951886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744423 (or 744416 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 72951886 is about 8541.1876223392. The cubic root of 72951886 is about 417.8420799485.

It can be divided in two parts, 72951 and 886, that added together give a palindrome (73837).

The spelling of 72951886 in words is "seventy-two million, nine hundred fifty-one thousand, eight hundred eighty-six".