72374663 has 2 divisors, whose sum is σ = 72374664. Its totient is φ = 72374662.

The previous prime is 72374647. The next prime is 72374683. The reversal of 72374663 is 36647327.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72374663 - 2⁴ = 72374647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72374623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36187331 + 36187332.

It is an arithmetic number, because the mean of its divisors is an integer number (36187332).

Almost surely, 2^72374663 is an apocalyptic number.

72374663 is a deficient number, since it is larger than the sum of its proper divisors (1).

72374663 is an equidigital number, since it uses as much as digits as its factorization.

72374663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 38.

The square root of 72374663 is about 8507.3299571605. The cubic root of 72374663 is about 416.7371188247.

It can be divided in two parts, 72374 and 663, that added together give a palindrome (73037).

The spelling of 72374663 in words is "seventy-two million, three hundred seventy-four thousand, six hundred sixty-three".