172401967 has 2 divisors, whose sum is σ = 172401968. Its totient is φ = 172401966.

The previous prime is 172401941. The next prime is 172402019. The reversal of 172401967 is 769104271.

172401967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172401967 - 2²³ = 164013359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172401367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86200983 + 86200984.

It is an arithmetic number, because the mean of its divisors is an integer number (86200984).

Almost surely, 2^172401967 is an apocalyptic number.

172401967 is a deficient number, since it is larger than the sum of its proper divisors (1).

172401967 is an equidigital number, since it uses as much as digits as its factorization.

172401967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 172401967 is about 13130.1929536469. The cubic root of 172401967 is about 556.5626679316.

The spelling of 172401967 in words is "one hundred seventy-two million, four hundred one thousand, nine hundred sixty-seven".