72717234 has 16 divisors (see below), whose sum is σ = 146328672. Its totient is φ = 24090048.

The previous prime is 72717217. The next prime is 72717251. The reversal of 72717234 is 43271727.

It is an interprime number because it is at equal distance from previous prime (72717217) and next prime (72717251).

It is a super-2 number, since 2×72717234² = 10575592241221512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72717195 and 72717204.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36199 + ... + 38154.

It is an arithmetic number, because the mean of its divisors is an integer number (9145542).

Almost surely, 2^72717234 is an apocalyptic number.

72717234 is an abundant number, since it is smaller than the sum of its proper divisors (73611438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72717234 is a wasteful number, since it uses less digits than its factorization.

72717234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74521.

The product of its digits is 16464, while the sum is 33.

The square root of 72717234 is about 8527.4400613549. The cubic root of 72717234 is about 417.3935980899.

It can be divided in two parts, 7271723 and 4, that added together give a palindrome (7271727).

The spelling of 72717234 in words is "seventy-two million, seven hundred seventeen thousand, two hundred thirty-four".