72316497 has 48 divisors (see below), whose sum is σ = 112077504. Its totient is φ = 41395200.

The previous prime is 72316483. The next prime is 72316513. The reversal of 72316497 is 79461327.

It is not a de Polignac number, because 72316497 - 2⁴ = 72316481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72316427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 639913 + ... + 640025.

It is an arithmetic number, because the mean of its divisors is an integer number (2334948).

Almost surely, 2^72316497 is an apocalyptic number.

It is an amenable number.

72316497 is a deficient number, since it is larger than the sum of its proper divisors (39761007).

72316497 is a wasteful number, since it uses less digits than its factorization.

72316497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 211 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 72316497 is about 8503.9106886185. The cubic root of 72316497 is about 416.6254479404.

The spelling of 72316497 in words is "seventy-two million, three hundred sixteen thousand, four hundred ninety-seven".