690896980 has 48 divisors (see below), whose sum is σ = 1492654464. Its totient is φ = 268513920.

The previous prime is 690896971. The next prime is 690896993. The reversal of 690896980 is 89698096.

690896980 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97849 + ... + 104671.

It is an arithmetic number, because the mean of its divisors is an integer number (31096968).

Almost surely, 2^690896980 is an apocalyptic number.

It is an amenable number.

690896980 is an abundant number, since it is smaller than the sum of its proper divisors (801757484).

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

690896980 is a wasteful number, since it uses less digits than its factorization.

690896980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6976 (or 6974 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 55.

The square root of 690896980 is about 26284.9192503991. The cubic root of 690896980 is about 884.0383353222.

The spelling of 690896980 in words is "six hundred ninety million, eight hundred ninety-six thousand, nine hundred eighty".