167273421 has 64 divisors (see below), whose sum is σ = 283668480. Its totient is φ = 85478400.

The previous prime is 167273417. The next prime is 167273429. The reversal of 167273421 is 124372761.

It is not a de Polignac number, because 167273421 - 2² = 167273417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167273429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1107696 + ... + 1107846.

It is an arithmetic number, because the mean of its divisors is an integer number (4432320).

Almost surely, 2^167273421 is an apocalyptic number.

It is an amenable number.

167273421 is a deficient number, since it is larger than the sum of its proper divisors (116395059).

167273421 is a wasteful number, since it uses less digits than its factorization.

167273421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314.

The product of its digits is 14112, while the sum is 33.

The square root of 167273421 is about 12933.4226328532. The cubic root of 167273421 is about 550.9882189349.

The spelling of 167273421 in words is "one hundred sixty-seven million, two hundred seventy-three thousand, four hundred twenty-one".