173402969 has 2 divisors, whose sum is σ = 173402970. Its totient is φ = 173402968.

The previous prime is 173402927. The next prime is 173402989. The reversal of 173402969 is 969204371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112360000 + 61042969 = 10600^2 + 7813^2 .

It is a cyclic number.

It is not a de Polignac number, because 173402969 - 2¹⁶ = 173337433 is a prime.

It is a super-2 number, since 2×173402969² = 60137179316029922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (173402989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86701484 + 86701485.

It is an arithmetic number, because the mean of its divisors is an integer number (86701485).

Almost surely, 2^173402969 is an apocalyptic number.

It is an amenable number.

173402969 is a deficient number, since it is larger than the sum of its proper divisors (1).

173402969 is an equidigital number, since it uses as much as digits as its factorization.

173402969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 173402969 is about 13168.2561108144. The cubic root of 173402969 is about 557.6377630818.

The spelling of 173402969 in words is "one hundred seventy-three million, four hundred two thousand, nine hundred sixty-nine".