172036990 has 16 divisors (see below), whose sum is σ = 320345280. Its totient is φ = 66441760.

The previous prime is 172036981. The next prime is 172037003. The reversal of 172036990 is 99630271.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 296326 + ... + 296905.

It is an arithmetic number, because the mean of its divisors is an integer number (20021580).

Almost surely, 2^172036990 is an apocalyptic number.

172036990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172036990 is a deficient number, since it is larger than the sum of its proper divisors (148308290).

172036990 is a wasteful number, since it uses less digits than its factorization.

172036990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593267.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 172036990 is about 13116.2872033209. The cubic root of 172036990 is about 556.1696405396.

The spelling of 172036990 in words is "one hundred seventy-two million, thirty-six thousand, nine hundred ninety".