690199772 has 12 divisors (see below), whose sum is σ = 1218931560. Its totient is φ = 341933616.

The previous prime is 690199771. The next prime is 690199777. The reversal of 690199772 is 277991096.

690199772 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 690199772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690199771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791078 + ... + 791949.

It is an arithmetic number, because the mean of its divisors is an integer number (101577630).

Almost surely, 2^690199772 is an apocalyptic number.

It is an amenable number.

690199772 is a deficient number, since it is larger than the sum of its proper divisors (528731788).

690199772 is a wasteful number, since it uses less digits than its factorization.

690199772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583140 (or 1583138 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 690199772 is about 26271.6533929633. The cubic root of 690199772 is about 883.7408640332.

The spelling of 690199772 in words is "six hundred ninety million, one hundred ninety-nine thousand, seven hundred seventy-two".