674987167 has 2 divisors, whose sum is σ = 674987168. Its totient is φ = 674987166.

The previous prime is 674987129. The next prime is 674987177. The reversal of 674987167 is 761789476.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674987167 is a prime.

It is a super-2 number, since 2×674987167² = 911215351229371778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674987177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337493583 + 337493584.

It is an arithmetic number, because the mean of its divisors is an integer number (337493584).

Almost surely, 2^674987167 is an apocalyptic number.

674987167 is a deficient number, since it is larger than the sum of its proper divisors (1).

674987167 is an equidigital number, since it uses as much as digits as its factorization.

674987167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The square root of 674987167 is about 25980.5151411592. The cubic root of 674987167 is about 877.1997623294.

The spelling of 674987167 in words is "six hundred seventy-four million, nine hundred eighty-seven thousand, one hundred sixty-seven".