72238277 has 8 divisors (see below), whose sum is σ = 74813952. Its totient is φ = 69678000.

The previous prime is 72238267. The next prime is 72238289. The reversal of 72238277 is 77283227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72238277 - 2²² = 68043973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72238277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72238207) 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 7 ways as a sum of consecutive naturals, for example, 6152 + ... + 13502.

It is an arithmetic number, because the mean of its divisors is an integer number (9351744).

Almost surely, 2^72238277 is an apocalyptic number.

It is an amenable number.

72238277 is a deficient number, since it is larger than the sum of its proper divisors (2575675).

72238277 is a wasteful number, since it uses less digits than its factorization.

72238277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699.

The product of its digits is 65856, while the sum is 38.

The square root of 72238277 is about 8499.3103837900. The cubic root of 72238277 is about 416.4751816316.

The spelling of 72238277 in words is "seventy-two million, two hundred thirty-eight thousand, two hundred seventy-seven".