72173302 has 8 divisors (see below), whose sum is σ = 108323712. Its totient is φ = 36065400.

The previous prime is 72173291. The next prime is 72173327. The reversal of 72173302 is 20337127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5974 + ... + 13417.

It is an arithmetic number, because the mean of its divisors is an integer number (13540464).

Almost surely, 2^72173302 is an apocalyptic number.

72173302 is a deficient number, since it is larger than the sum of its proper divisors (36150410).

72173302 is a wasteful number, since it uses less digits than its factorization.

72173302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21254.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 72173302 is about 8495.4871549547. The cubic root of 72173302 is about 416.3502774334.

The spelling of 72173302 in words is "seventy-two million, one hundred seventy-three thousand, three hundred two".