690383694 has 128 divisors (see below), whose sum is σ = 1881169920. Its totient is φ = 163094400.

The previous prime is 690383669. The next prime is 690383711. The reversal of 690383694 is 496383096.

690383694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 425617 + ... + 427235.

It is an arithmetic number, because the mean of its divisors is an integer number (14696640).

Almost surely, 2^690383694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690383694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940584960).

690383694 is an abundant number, since it is smaller than the sum of its proper divisors (1190786226).

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

690383694 is a wasteful number, since it uses less digits than its factorization.

690383694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 690383694 is about 26275.1535485523. The cubic root of 690383694 is about 883.8193557773.

The spelling of 690383694 in words is "six hundred ninety million, three hundred eighty-three thousand, six hundred ninety-four".