72468997 has 2 divisors, whose sum is σ = 72468998. Its totient is φ = 72468996.

The previous prime is 72468989. The next prime is 72469003. The reversal of 72468997 is 79986427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63504961 + 8964036 = 7969^2 + 2994^2 .

It is a cyclic number.

It is not a de Polignac number, because 72468997 - 2³ = 72468989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72468937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36234498 + 36234499.

It is an arithmetic number, because the mean of its divisors is an integer number (36234499).

Almost surely, 2^72468997 is an apocalyptic number.

It is an amenable number.

72468997 is a deficient number, since it is larger than the sum of its proper divisors (1).

72468997 is an equidigital number, since it uses as much as digits as its factorization.

72468997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 72468997 is about 8512.8724294447. The cubic root of 72468997 is about 416.9181002620.

The spelling of 72468997 in words is "seventy-two million, four hundred sixty-eight thousand, nine hundred ninety-seven".