72028970 has 32 divisors (see below), whose sum is σ = 142007040. Its totient is φ = 26141760.

The previous prime is 72028933. The next prime is 72028987. The reversal of 72028970 is 7982027.

It is a self number, because there is not a number n which added to its sum of digits gives 72028970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2975 + ... + 12365.

It is an arithmetic number, because the mean of its divisors is an integer number (4437720).

Almost surely, 2^72028970 is an apocalyptic number.

72028970 is a deficient number, since it is larger than the sum of its proper divisors (69978070).

72028970 is a wasteful number, since it uses less digits than its factorization.

72028970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 72028970 is about 8486.9882761790. The cubic root of 72028970 is about 416.0725534512.

The spelling of 72028970 in words is "seventy-two million, twenty-eight thousand, nine hundred seventy".