72972295 has 32 divisors (see below), whose sum is σ = 99680256. Its totient is φ = 50803200.

The previous prime is 72972271. The next prime is 72972299. The reversal of 72972295 is 59227927.

It is not a de Polignac number, because 72972295 - 2¹³ = 72964103 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 (72972299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216367 + ... + 216703.

It is an arithmetic number, because the mean of its divisors is an integer number (3115008).

Almost surely, 2^72972295 is an apocalyptic number.

72972295 is a deficient number, since it is larger than the sum of its proper divisors (26707961).

72972295 is a wasteful number, since it uses less digits than its factorization.

72972295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its digits is 158760, while the sum is 43.

The square root of 72972295 is about 8542.3822789664. The cubic root of 72972295 is about 417.8810414447.

The spelling of 72972295 in words is "seventy-two million, nine hundred seventy-two thousand, two hundred ninety-five".