172680536 has 16 divisors (see below), whose sum is σ = 370029840. Its totient is φ = 74005920.

The previous prime is 172680533. The next prime is 172680539. The reversal of 172680536 is 635086271.

It is an interprime number because it is at equal distance from previous prime (172680533) and next prime (172680539).

It is a self number, because there is not a number n which added to its sum of digits gives 172680536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172680533) 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 3 ways as a sum of consecutive naturals, for example, 1541735 + ... + 1541846.

It is an arithmetic number, because the mean of its divisors is an integer number (23126865).

Almost surely, 2^172680536 is an apocalyptic number.

It is an amenable number.

172680536 is an abundant number, since it is smaller than the sum of its proper divisors (197349304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172680536 is a wasteful number, since it uses less digits than its factorization.

172680536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083594 (or 3083590 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 172680536 is about 13140.7966272978. The cubic root of 172680536 is about 556.8622733203.

The spelling of 172680536 in words is "one hundred seventy-two million, six hundred eighty thousand, five hundred thirty-six".