72353863 has 2 divisors, whose sum is σ = 72353864. Its totient is φ = 72353862.

The previous prime is 72353857. The next prime is 72353891. The reversal of 72353863 is 36835327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72353863 - 2¹³ = 72345671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72353803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36176931 + 36176932.

It is an arithmetic number, because the mean of its divisors is an integer number (36176932).

Almost surely, 2^72353863 is an apocalyptic number.

72353863 is a deficient number, since it is larger than the sum of its proper divisors (1).

72353863 is an equidigital number, since it uses as much as digits as its factorization.

72353863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 72353863 is about 8506.1073941022. The cubic root of 72353863 is about 416.6971925013.

The spelling of 72353863 in words is "seventy-two million, three hundred fifty-three thousand, eight hundred sixty-three".