72028710 has 64 divisors (see below), whose sum is σ = 206861760. Its totient is φ = 17729280.

The previous prime is 72028703. The next prime is 72028727. The reversal of 72028710 is 1782027.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6751 + ... + 13770.

It is an arithmetic number, because the mean of its divisors is an integer number (3232215).

Almost surely, 2^72028710 is an apocalyptic number.

72028710 is an abundant number, since it is smaller than the sum of its proper divisors (134833050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72028710 is a wasteful number, since it uses less digits than its factorization.

72028710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20550 (or 20544 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 72028710 is about 8486.9729585996. The cubic root of 72028710 is about 416.0720528239.

The spelling of 72028710 in words is "seventy-two million, twenty-eight thousand, seven hundred ten".