73622431 has 2 divisors, whose sum is σ = 73622432. Its totient is φ = 73622430.

The previous prime is 73622377. The next prime is 73622441. The reversal of 73622431 is 13422637.

It is a strong prime.

It is an emirp because it is prime and its reverse (13422637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73622431 - 2¹³ = 73614239 is a prime.

It is a super-2 number, since 2×73622431² = 10840524692699522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73622431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73622441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36811215 + 36811216.

It is an arithmetic number, because the mean of its divisors is an integer number (36811216).

Almost surely, 2^73622431 is an apocalyptic number.

73622431 is a deficient number, since it is larger than the sum of its proper divisors (1).

73622431 is an equidigital number, since it uses as much as digits as its factorization.

73622431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 28.

The square root of 73622431 is about 8580.3514496785. The cubic root of 73622431 is about 419.1183907204.

The spelling of 73622431 in words is "seventy-three million, six hundred twenty-two thousand, four hundred thirty-one".