72277070 has 32 divisors (see below), whose sum is σ = 135098496. Its totient is φ = 27820800.

The previous prime is 72277067. The next prime is 72277087. The reversal of 72277070 is 7077227.

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 15 ways as a sum of consecutive naturals, for example, 27410 + ... + 29930.

It is an arithmetic number, because the mean of its divisors is an integer number (4221828).

Almost surely, 2^72277070 is an apocalyptic number.

72277070 is a deficient number, since it is larger than the sum of its proper divisors (62821426).

72277070 is a wasteful number, since it uses less digits than its factorization.

72277070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636.

The product of its (nonzero) digits is 9604, while the sum is 32.

The square root of 72277070 is about 8501.5922038169. The cubic root of 72277070 is about 416.5497193568.

The spelling of 72277070 in words is "seventy-two million, two hundred seventy-seven thousand, seventy".