72284375 has 12 divisors (see below), whose sum is σ = 90353592. Its totient is φ = 57825000.

The previous prime is 72284371. The next prime is 72284383. The reversal of 72284375 is 57348227.

It is not a de Polignac number, because 72284375 - 2² = 72284371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72284371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8441 + ... + 14690.

It is an arithmetic number, because the mean of its divisors is an integer number (7529466).

Almost surely, 2^72284375 is an apocalyptic number.

72284375 is a deficient number, since it is larger than the sum of its proper divisors (18069217).

72284375 is an frugal number, since it uses more digits than its factorization.

72284375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156 (or 23136 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 72284375 is about 8502.0218183677. The cubic root of 72284375 is about 416.5637523606.

The spelling of 72284375 in words is "seventy-two million, two hundred eighty-four thousand, three hundred seventy-five".