72714646 has 4 divisors (see below), whose sum is σ = 109071972. Its totient is φ = 36357322.

The previous prime is 72714637. The next prime is 72714659. The reversal of 72714646 is 64641727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64641727 = 31 ⋅2085217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18178660 + ... + 18178663.

It is an arithmetic number, because the mean of its divisors is an integer number (27267993).

Almost surely, 2^72714646 is an apocalyptic number.

72714646 is a deficient number, since it is larger than the sum of its proper divisors (36357326).

72714646 is a wasteful number, since it uses less digits than its factorization.

72714646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36357325.

The product of its digits is 56448, while the sum is 37.

The square root of 72714646 is about 8527.2883145816. The cubic root of 72714646 is about 417.3886463640.

The spelling of 72714646 in words is "seventy-two million, seven hundred fourteen thousand, six hundred forty-six".