72296487 has 6 divisors (see below), whose sum is σ = 104428272. Its totient is φ = 48197652.

The previous prime is 72296447. The next prime is 72296491. The reversal of 72296487 is 78469227.

It is a de Polignac number, because none of the positive numbers 2^k-72296487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72296437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4016463 + ... + 4016480.

It is an arithmetic number, because the mean of its divisors is an integer number (17404712).

Almost surely, 2^72296487 is an apocalyptic number.

72296487 is a deficient number, since it is larger than the sum of its proper divisors (32131785).

72296487 is a wasteful number, since it uses less digits than its factorization.

72296487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8032949 (or 8032946 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 72296487 is about 8502.7340896914. The cubic root of 72296487 is about 416.5870175932.

The spelling of 72296487 in words is "seventy-two million, two hundred ninety-six thousand, four hundred eighty-seven".