172696433 has 12 divisors (see below), whose sum is σ = 216345780. Its totient is φ = 136638432.

The previous prime is 172696417. The next prime is 172696483. The reversal of 172696433 is 334696271.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 151609969 = 4592^2 + 12313^2 .

It is not a de Polignac number, because 172696433 - 2⁴ = 172696417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172696483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134918 + ... + 136191.

It is an arithmetic number, because the mean of its divisors is an integer number (18028815).

Almost surely, 2^172696433 is an apocalyptic number.

172696433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

172696433 is a deficient number, since it is larger than the sum of its proper divisors (43649347).

172696433 is a wasteful number, since it uses less digits than its factorization.

172696433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271136 (or 271129 counting only the distinct ones).

The product of its digits is 163296, while the sum is 41.

The square root of 172696433 is about 13141.4014853820. The cubic root of 172696433 is about 556.8793610750.

The spelling of 172696433 in words is "one hundred seventy-two million, six hundred ninety-six thousand, four hundred thirty-three".