690948594 has 24 divisors (see below), whose sum is σ = 1710920640. Its totient is φ = 197413848.

The previous prime is 690948593. The next prime is 690948613. The reversal of 690948594 is 495849096.

690948594 is a `hidden beast` number, since 6 + 9 + 0 + 9 + 48 + 594 = 666.

690948594 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 690948594.

It is not an unprimeable number, because it can be changed into a prime (690948593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2741734 + ... + 2741985.

It is an arithmetic number, because the mean of its divisors is an integer number (71288360).

Almost surely, 2^690948594 is an apocalyptic number.

690948594 is an abundant number, since it is smaller than the sum of its proper divisors (1019972046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690948594 is a wasteful number, since it uses less digits than its factorization.

690948594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483734 (or 5483731 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 690948594 is about 26285.9010498023. The cubic root of 690948594 is about 884.0603490327.

The spelling of 690948594 in words is "six hundred ninety million, nine hundred forty-eight thousand, five hundred ninety-four".