167730972 has 12 divisors (see below), whose sum is σ = 391372296. Its totient is φ = 55910320.

The previous prime is 167730971. The next prime is 167731009. The reversal of 167730972 is 279037761.

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 (167730971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6988779 + ... + 6988802.

It is an arithmetic number, because the mean of its divisors is an integer number (32614358).

Almost surely, 2^167730972 is an apocalyptic number.

167730972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

167730972 is an abundant number, since it is smaller than the sum of its proper divisors (223641324).

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

167730972 is a wasteful number, since it uses less digits than its factorization.

167730972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13977588 (or 13977586 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 42.

The square root of 167730972 is about 12951.0992583641. The cubic root of 167730972 is about 551.4901430553.

The spelling of 167730972 in words is "one hundred sixty-seven million, seven hundred thirty thousand, nine hundred seventy-two".