72860407 has 2 divisors, whose sum is σ = 72860408. Its totient is φ = 72860406.

The previous prime is 72860401. The next prime is 72860503. The reversal of 72860407 is 70406827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72860407 - 2³ = 72860399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72860401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36430203 + 36430204.

It is an arithmetic number, because the mean of its divisors is an integer number (36430204).

Almost surely, 2^72860407 is an apocalyptic number.

72860407 is a deficient number, since it is larger than the sum of its proper divisors (1).

72860407 is an equidigital number, since it uses as much as digits as its factorization.

72860407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 72860407 is about 8535.8307738614. The cubic root of 72860407 is about 417.6673539935.

The spelling of 72860407 in words is "seventy-two million, eight hundred sixty thousand, four hundred seven".