167420771 has 4 divisors (see below), whose sum is σ = 191338032. Its totient is φ = 143503512.

The previous prime is 167420767. The next prime is 167420807. The reversal of 167420771 is 177024761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 167420771 - 2² = 167420767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167420971) 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, 11958620 + ... + 11958633.

It is an arithmetic number, because the mean of its divisors is an integer number (47834508).

Almost surely, 2^167420771 is an apocalyptic number.

167420771 is a deficient number, since it is larger than the sum of its proper divisors (23917261).

167420771 is an equidigital number, since it uses as much as digits as its factorization.

167420771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23917260.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 167420771 is about 12939.1178601943. The cubic root of 167420771 is about 551.1499586899.

The spelling of 167420771 in words is "one hundred sixty-seven million, four hundred twenty thousand, seven hundred seventy-one".