72075894 has 16 divisors (see below), whose sum is σ = 157256640. Its totient is φ = 21841160.

The previous prime is 72075851. The next prime is 72075917. The reversal of 72075894 is 49857027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545964 + ... + 546095.

It is an arithmetic number, because the mean of its divisors is an integer number (9828540).

Almost surely, 2^72075894 is an apocalyptic number.

72075894 is an abundant number, since it is smaller than the sum of its proper divisors (85180746).

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

72075894 is a wasteful number, since it uses less digits than its factorization.

72075894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092075.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 72075894 is about 8489.7522932062. The cubic root of 72075894 is about 416.1628853939.

The spelling of 72075894 in words is "seventy-two million, seventy-five thousand, eight hundred ninety-four".