72722882 has 4 divisors (see below), whose sum is σ = 109084326. Its totient is φ = 36361440.

The previous prime is 72722873. The next prime is 72722887. The reversal of 72722882 is 28822727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54922921 + 17799961 = 7411^2 + 4219^2 .

It is not an unprimeable number, because it can be changed into a prime (72722887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18180719 + ... + 18180722.

Almost surely, 2^72722882 is an apocalyptic number.

72722882 is a deficient number, since it is larger than the sum of its proper divisors (36361444).

72722882 is a wasteful number, since it uses less digits than its factorization.

72722882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36361443.

The product of its digits is 50176, while the sum is 38.

The square root of 72722882 is about 8527.7712211339. The cubic root of 72722882 is about 417.4044042307.

The spelling of 72722882 in words is "seventy-two million, seven hundred twenty-two thousand, eight hundred eighty-two".