72622115 has 4 divisors (see below), whose sum is σ = 87146544. Its totient is φ = 58097688.

The previous prime is 72622103. The next prime is 72622117. The reversal of 72622115 is 51122627.

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

It is a cyclic number.

It is not a de Polignac number, because 72622115 - 2⁶ = 72622051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72622117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7262207 + ... + 7262216.

It is an arithmetic number, because the mean of its divisors is an integer number (21786636).

Almost surely, 2^72622115 is an apocalyptic number.

72622115 is a deficient number, since it is larger than the sum of its proper divisors (14524429).

72622115 is a wasteful number, since it uses less digits than its factorization.

72622115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14524428.

The product of its digits is 1680, while the sum is 26.

The square root of 72622115 is about 8521.8610056724. The cubic root of 72622115 is about 417.2115257757.

The spelling of 72622115 in words is "seventy-two million, six hundred twenty-two thousand, one hundred fifteen".