690146802 has 48 divisors (see below), whose sum is σ = 1525032600. Its totient is φ = 225504000.

The previous prime is 690146801. The next prime is 690146813. The reversal of 690146802 is 208641096.

690146802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 347859801 + 342287001 = 18651^2 + 18501^2 .

It is not an unprimeable number, because it can be changed into a prime (690146801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382302 + ... + 384102.

Almost surely, 2^690146802 is an apocalyptic number.

690146802 is an abundant number, since it is smaller than the sum of its proper divisors (834885798).

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

690146802 is a wasteful number, since it uses less digits than its factorization.

690146802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2216 counting only the distinct ones).

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

The square root of 690146802 is about 26270.6452528292. The cubic root of 690146802 is about 883.7182556266.

Adding to 690146802 its reverse (208641096), we get a palindrome (898787898).

The spelling of 690146802 in words is "six hundred ninety million, one hundred forty-six thousand, eight hundred two".