73169731 has 2 divisors, whose sum is σ = 73169732. Its totient is φ = 73169730.

The previous prime is 73169687. The next prime is 73169771. The reversal of 73169731 is 13796137.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73169731 - 2⁹ = 73169219 is a prime.

It is a super-2 number, since 2×73169731² = 10707619069224722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73169771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36584865 + 36584866.

It is an arithmetic number, because the mean of its divisors is an integer number (36584866).

Almost surely, 2^73169731 is an apocalyptic number.

73169731 is a deficient number, since it is larger than the sum of its proper divisors (1).

73169731 is an equidigital number, since it uses as much as digits as its factorization.

73169731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 37.

The square root of 73169731 is about 8553.9307338790. The cubic root of 73169731 is about 418.2575791605.

The spelling of 73169731 in words is "seventy-three million, one hundred sixty-nine thousand, seven hundred thirty-one".