72361117 has 8 divisors (see below), whose sum is σ = 72895680. Its totient is φ = 71829120.

The previous prime is 72361111. The next prime is 72361123. The reversal of 72361117 is 71116327.

It is an interprime number because it is at equal distance from previous prime (72361111) and next prime (72361123).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72361117 is a prime.

It is a super-2 number, since 2×72361117² = 10472262506975378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72361111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126442 + ... + 127012.

It is an arithmetic number, because the mean of its divisors is an integer number (9111960).

Almost surely, 2^72361117 is an apocalyptic number.

It is an amenable number.

72361117 is a deficient number, since it is larger than the sum of its proper divisors (534563).

72361117 is a wasteful number, since it uses less digits than its factorization.

72361117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its digits is 1764, while the sum is 28.

The square root of 72361117 is about 8506.5337829224. The cubic root of 72361117 is about 416.7111176755.

The spelling of 72361117 in words is "seventy-two million, three hundred sixty-one thousand, one hundred seventeen".