167421974 has 8 divisors (see below), whose sum is σ = 252733008. Its totient is φ = 83177640.

The previous prime is 167421973. The next prime is 167421997. The reversal of 167421974 is 479124761.

167421974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167421971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266282 + ... + 266909.

It is an arithmetic number, because the mean of its divisors is an integer number (31591626).

Almost surely, 2^167421974 is an apocalyptic number.

167421974 is a deficient number, since it is larger than the sum of its proper divisors (85311034).

167421974 is a wasteful number, since it uses less digits than its factorization.

167421974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533350.

The product of its digits is 84672, while the sum is 41.

The square root of 167421974 is about 12939.1643470512. The cubic root of 167421974 is about 551.1512787806.

The spelling of 167421974 in words is "one hundred sixty-seven million, four hundred twenty-one thousand, nine hundred seventy-four".