690954159 has 16 divisors (see below), whose sum is σ = 1053880832. Its totient is φ = 394456608.

The previous prime is 690954113. The next prime is 690954211. The reversal of 690954159 is 951459096.

It is not a de Polignac number, because 690954159 - 2¹⁷ = 690823087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690954059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7902 + ... + 38004.

It is an arithmetic number, because the mean of its divisors is an integer number (65867552).

Almost surely, 2^690954159 is an apocalyptic number.

690954159 is a deficient number, since it is larger than the sum of its proper divisors (362926673).

690954159 is a wasteful number, since it uses less digits than its factorization.

690954159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31206.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 690954159 is about 26286.0069048153. The cubic root of 690954159 is about 884.0627224764.

The spelling of 690954159 in words is "six hundred ninety million, nine hundred fifty-four thousand, one hundred fifty-nine".