690986058 has 32 divisors (see below), whose sum is σ = 1601648640. Its totient is φ = 194643120.

The previous prime is 690986041. The next prime is 690986059. The reversal of 690986058 is 850689096.

690986058 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 690986058.

It is not an unprimeable number, because it can be changed into a prime (690986059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112878 + ... + 118841.

It is an arithmetic number, because the mean of its divisors is an integer number (50051520).

Almost surely, 2^690986058 is an apocalyptic number.

690986058 is an abundant number, since it is smaller than the sum of its proper divisors (910662582).

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

690986058 is a wasteful number, since it uses less digits than its factorization.

690986058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231802.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 690986058 is about 26286.6136655142. The cubic root of 690986058 is about 884.0763269886.

The spelling of 690986058 in words is "six hundred ninety million, nine hundred eighty-six thousand, fifty-eight".