690055614 has 48 divisors (see below), whose sum is σ = 1563599232. Its totient is φ = 219528144.

The previous prime is 690055573. The next prime is 690055621. The reversal of 690055614 is 416550096.

690055614 is a `hidden beast` number, since 6 + 90 + 0 + 5 + 561 + 4 = 666.

690055614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214929 + ... + 218115.

It is an arithmetic number, because the mean of its divisors is an integer number (32574984).

Almost surely, 2^690055614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690055614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781799616).

690055614 is an abundant number, since it is smaller than the sum of its proper divisors (873543618).

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

690055614 is a wasteful number, since it uses less digits than its factorization.

690055614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 690055614 is about 26268.9096461958. The cubic root of 690055614 is about 883.6793324828.

The spelling of 690055614 in words is "six hundred ninety million, fifty-five thousand, six hundred fourteen".