72700623 has 6 divisors (see below), whose sum is σ = 105012024. Its totient is φ = 48467076.

The previous prime is 72700583. The next prime is 72700633. The reversal of 72700623 is 32600727.

It is not a de Polignac number, because 72700623 - 2⁸ = 72700367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72700633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4038915 + ... + 4038932.

It is an arithmetic number, because the mean of its divisors is an integer number (17502004).

Almost surely, 2^72700623 is an apocalyptic number.

72700623 is a deficient number, since it is larger than the sum of its proper divisors (32311401).

72700623 is a wasteful number, since it uses less digits than its factorization.

72700623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077853 (or 8077850 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 72700623 is about 8526.4660323020. The cubic root of 72700623 is about 417.3618135428.

The spelling of 72700623 in words is "seventy-two million, seven hundred thousand, six hundred twenty-three".