72700501 has 2 divisors, whose sum is σ = 72700502. Its totient is φ = 72700500.

The previous prime is 72700499. The next prime is 72700519. The reversal of 72700501 is 10500727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70997476 + 1703025 = 8426^2 + 1305^2 .

It is a cyclic number.

It is not a de Polignac number, because 72700501 - 2¹ = 72700499 is a prime.

Together with 72700499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72700531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36350250 + 36350251.

It is an arithmetic number, because the mean of its divisors is an integer number (36350251).

Almost surely, 2^72700501 is an apocalyptic number.

It is an amenable number.

72700501 is a deficient number, since it is larger than the sum of its proper divisors (1).

72700501 is an equidigital number, since it uses as much as digits as its factorization.

72700501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 72700501 is about 8526.4588781041. The cubic root of 72700501 is about 417.3615800823.

The spelling of 72700501 in words is "seventy-two million, seven hundred thousand, five hundred one".