72356287 has 2 divisors, whose sum is σ = 72356288. Its totient is φ = 72356286.

The previous prime is 72356261. The next prime is 72356293. The reversal of 72356287 is 78265327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72356287 - 2⁷ = 72356159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72356227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36178143 + 36178144.

It is an arithmetic number, because the mean of its divisors is an integer number (36178144).

Almost surely, 2^72356287 is an apocalyptic number.

72356287 is a deficient number, since it is larger than the sum of its proper divisors (1).

72356287 is an equidigital number, since it uses as much as digits as its factorization.

72356287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 72356287 is about 8506.2498787656. The cubic root of 72356287 is about 416.7018458475.

The spelling of 72356287 in words is "seventy-two million, three hundred fifty-six thousand, two hundred eighty-seven".