690212682 has 96 divisors (see below), whose sum is σ = 1629538560. Its totient is φ = 210332160.

The previous prime is 690212657. The next prime is 690212749. The reversal of 690212682 is 286212096.

It is a happy number.

690212682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1922419 + ... + 1922777.

It is an arithmetic number, because the mean of its divisors is an integer number (16974360).

Almost surely, 2^690212682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690212682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (814769280).

690212682 is an abundant number, since it is smaller than the sum of its proper divisors (939325878).

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

690212682 is a wasteful number, since it uses less digits than its factorization.

690212682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 690212682 is about 26271.8990938988. The cubic root of 690212682 is about 883.7463740434.

The spelling of 690212682 in words is "six hundred ninety million, two hundred twelve thousand, six hundred eighty-two".