72960457 has 2 divisors, whose sum is σ = 72960458. Its totient is φ = 72960456.

The previous prime is 72960449. The next prime is 72960467. The reversal of 72960457 is 75406927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 9853321 = 7944^2 + 3139^2 .

It is a cyclic number.

It is not a de Polignac number, because 72960457 - 2³ = 72960449 is a prime.

It is not a weakly prime, because it can be changed into another prime (72960467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36480228 + 36480229.

It is an arithmetic number, because the mean of its divisors is an integer number (36480229).

Almost surely, 2^72960457 is an apocalyptic number.

It is an amenable number.

72960457 is a deficient number, since it is larger than the sum of its proper divisors (1).

72960457 is an equidigital number, since it uses as much as digits as its factorization.

72960457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 72960457 is about 8541.6893528154. The cubic root of 72960457 is about 417.8584431728.

The spelling of 72960457 in words is "seventy-two million, nine hundred sixty thousand, four hundred fifty-seven".