172693396 has 6 divisors (see below), whose sum is σ = 302213450. Its totient is φ = 86346696.

The previous prime is 172693373. The next prime is 172693397. The reversal of 172693396 is 693396271.

It can be written as a sum of positive squares in only one way, i.e., 137124100 + 35569296 = 11710^2 + 5964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172693397) 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 as a sum of consecutive naturals, namely, 21586671 + ... + 21586678.

Almost surely, 2^172693396 is an apocalyptic number.

It is an amenable number.

172693396 is a deficient number, since it is larger than the sum of its proper divisors (129520054).

172693396 is a wasteful number, since it uses less digits than its factorization.

172693396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43173353 (or 43173351 counting only the distinct ones).

The product of its digits is 367416, while the sum is 46.

The square root of 172693396 is about 13141.2859340325. The cubic root of 172693396 is about 556.8760966714.

The spelling of 172693396 in words is "one hundred seventy-two million, six hundred ninety-three thousand, three hundred ninety-six".