72463577 has 2 divisors, whose sum is σ = 72463578. Its totient is φ = 72463576.

The previous prime is 72463553. The next prime is 72463579. The reversal of 72463577 is 77536427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 10621081 = 7864^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 72463577 - 2¹⁰ = 72462553 is a prime.

Together with 72463579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72463579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36231788 + 36231789.

It is an arithmetic number, because the mean of its divisors is an integer number (36231789).

Almost surely, 2^72463577 is an apocalyptic number.

It is an amenable number.

72463577 is a deficient number, since it is larger than the sum of its proper divisors (1).

72463577 is an equidigital number, since it uses as much as digits as its factorization.

72463577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 41.

The square root of 72463577 is about 8512.5540820602. The cubic root of 72463577 is about 416.9077061508.

The spelling of 72463577 in words is "seventy-two million, four hundred sixty-three thousand, five hundred seventy-seven".