72386955 has 12 divisors (see below), whose sum is σ = 125470800. Its totient is φ = 38606352.

The previous prime is 72386939. The next prime is 72387013. The reversal of 72386955 is 55968327.

It is a happy number.

It is not a de Polignac number, because 72386955 - 2⁴ = 72386939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1608599 = 72386955 / (7 + 2 + 3 + 8 + 6 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 72386955.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804255 + ... + 804344.

It is an arithmetic number, because the mean of its divisors is an integer number (10455900).

Almost surely, 2^72386955 is an apocalyptic number.

72386955 is a deficient number, since it is larger than the sum of its proper divisors (53083845).

72386955 is a wasteful number, since it uses less digits than its factorization.

72386955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608610 (or 1608607 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 72386955 is about 8508.0523623212. The cubic root of 72386955 is about 416.7607101502.

It can be divided in two parts, 723 and 86955, that added together give a palindrome (87678).

The spelling of 72386955 in words is "seventy-two million, three hundred eighty-six thousand, nine hundred fifty-five".