72707914 has 4 divisors (see below), whose sum is σ = 109061874. Its totient is φ = 36353956.

The previous prime is 72707909. The next prime is 72707939. The reversal of 72707914 is 41970727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41970727 = 71 ⋅591137.

It can be written as a sum of positive squares in only one way, i.e., 41538025 + 31169889 = 6445^2 + 5583^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18176977 + ... + 18176980.

Almost surely, 2^72707914 is an apocalyptic number.

72707914 is a deficient number, since it is larger than the sum of its proper divisors (36353960).

72707914 is a wasteful number, since it uses less digits than its factorization.

72707914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36353959.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 72707914 is about 8526.8935726911. The cubic root of 72707914 is about 417.3757652034.

The spelling of 72707914 in words is "seventy-two million, seven hundred seven thousand, nine hundred fourteen".