72070676 has 6 divisors (see below), whose sum is σ = 126123690. Its totient is φ = 36035336.

The previous prime is 72070657. The next prime is 72070699. The reversal of 72070676 is 67607027.

It can be written as a sum of positive squares in only one way, i.e., 63520900 + 8549776 = 7970^2 + 2924^2 .

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, 9008831 + ... + 9008838.

It is an arithmetic number, because the mean of its divisors is an integer number (21020615).

Almost surely, 2^72070676 is an apocalyptic number.

It is an amenable number.

72070676 is a deficient number, since it is larger than the sum of its proper divisors (54053014).

72070676 is a wasteful number, since it uses less digits than its factorization.

72070676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18017673 (or 18017671 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 72070676 is about 8489.4449759687. Note that the first 3 decimals coincide. The cubic root of 72070676 is about 416.1528423211.

The spelling of 72070676 in words is "seventy-two million, seventy thousand, six hundred seventy-six".