690377167 has 2 divisors, whose sum is σ = 690377168. Its totient is φ = 690377166.

The previous prime is 690377159. The next prime is 690377203. The reversal of 690377167 is 761773096.

It is a happy number.

690377167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690377167 - 2³ = 690377159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690377267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345188583 + 345188584.

It is an arithmetic number, because the mean of its divisors is an integer number (345188584).

Almost surely, 2^690377167 is an apocalyptic number.

690377167 is a deficient number, since it is larger than the sum of its proper divisors (1).

690377167 is an equidigital number, since it uses as much as digits as its factorization.

690377167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 690377167 is about 26275.0293434660. The cubic root of 690377167 is about 883.8165705111.

The spelling of 690377167 in words is "six hundred ninety million, three hundred seventy-seven thousand, one hundred sixty-seven".