72842115 has 16 divisors (see below), whose sum is σ = 117681408. Its totient is φ = 38471136.

The previous prime is 72842111. The next prime is 72842123. The reversal of 72842115 is 51124827.

It is not a de Polignac number, because 72842115 - 2² = 72842111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72842111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22029 + ... + 25118.

It is an arithmetic number, because the mean of its divisors is an integer number (7355088).

Almost surely, 2^72842115 is an apocalyptic number.

72842115 is a deficient number, since it is larger than the sum of its proper divisors (44839293).

72842115 is a wasteful number, since it uses less digits than its factorization.

72842115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47258.

The product of its digits is 4480, while the sum is 30.

The square root of 72842115 is about 8534.7592233173. The cubic root of 72842115 is about 417.6323985173.

The spelling of 72842115 in words is "seventy-two million, eight hundred forty-two thousand, one hundred fifteen".