172463971 has 2 divisors, whose sum is σ = 172463972. Its totient is φ = 172463970.

The previous prime is 172463911. The next prime is 172463983. The reversal of 172463971 is 179364271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172463971 - 2²³ = 164075363 is a prime.

It is not a weakly prime, because it can be changed into another prime (172463911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86231985 + 86231986.

It is an arithmetic number, because the mean of its divisors is an integer number (86231986).

Almost surely, 2^172463971 is an apocalyptic number.

172463971 is a deficient number, since it is larger than the sum of its proper divisors (1).

172463971 is an equidigital number, since it uses as much as digits as its factorization.

172463971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 172463971 is about 13132.5538643479. The cubic root of 172463971 is about 556.6293821268.

The spelling of 172463971 in words is "one hundred seventy-two million, four hundred sixty-three thousand, nine hundred seventy-one".