690130780 has 24 divisors (see below), whose sum is σ = 1450723680. Its totient is φ = 275776320.

The previous prime is 690130769. The next prime is 690130789. The reversal of 690130780 is 87031096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690130789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3886 + ... + 37354.

It is an arithmetic number, because the mean of its divisors is an integer number (60446820).

Almost surely, 2^690130780 is an apocalyptic number.

It is an amenable number.

690130780 is an abundant number, since it is smaller than the sum of its proper divisors (760592900).

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

690130780 is a wasteful number, since it uses less digits than its factorization.

690130780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34509 (or 34507 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 690130780 is about 26270.3403099389. The cubic root of 690130780 is about 883.7114169640.

The spelling of 690130780 in words is "six hundred ninety million, one hundred thirty thousand, seven hundred eighty".