72296516 has 6 divisors (see below), whose sum is σ = 126518910. Its totient is φ = 36148256.

The previous prime is 72296513. The next prime is 72296537. The reversal of 72296516 is 61569227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44943616 + 27352900 = 6704^2 + 5230^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72296516.

It is not an unprimeable number, because it can be changed into a prime (72296513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037061 + ... + 9037068.

It is an arithmetic number, because the mean of its divisors is an integer number (21086485).

Almost surely, 2^72296516 is an apocalyptic number.

It is an amenable number.

72296516 is a deficient number, since it is larger than the sum of its proper divisors (54222394).

72296516 is a wasteful number, since it uses less digits than its factorization.

72296516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18074133 (or 18074131 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 72296516 is about 8502.7357950250. The cubic root of 72296516 is about 416.5870732945.

The spelling of 72296516 in words is "seventy-two million, two hundred ninety-six thousand, five hundred sixteen".