162786972 has 12 divisors (see below), whose sum is σ = 379836296. Its totient is φ = 54262320.

The previous prime is 162786941. The next prime is 162786973. The reversal of 162786972 is 279687261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162786973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6782779 + ... + 6782802.

Almost surely, 2^162786972 is an apocalyptic number.

162786972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

162786972 is an abundant number, since it is smaller than the sum of its proper divisors (217049324).

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

162786972 is a wasteful number, since it uses less digits than its factorization.

162786972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565588 (or 13565586 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 162786972 is about 12758.7997868138. The cubic root of 162786972 is about 546.0174825676.

The spelling of 162786972 in words is "one hundred sixty-two million, seven hundred eighty-six thousand, nine hundred seventy-two".