690637376 has 224 divisors, whose sum is σ = 1788127488. Its totient is φ = 259522560.

The previous prime is 690637373. The next prime is 690637391. The reversal of 690637376 is 673736096.

It is a self number, because there is not a number n which added to its sum of digits gives 690637376.

It is not an unprimeable number, because it can be changed into a prime (690637373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3578336 + ... + 3578528.

It is an arithmetic number, because the mean of its divisors is an integer number (7982712).

Almost surely, 2^690637376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690637376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894063744).

690637376 is an abundant number, since it is smaller than the sum of its proper divisors (1097490112).

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

690637376 is a wasteful number, since it uses less digits than its factorization.

690637376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 47.

The square root of 690637376 is about 26279.9805174966. The cubic root of 690637376 is about 883.9275958798.

The spelling of 690637376 in words is "six hundred ninety million, six hundred thirty-seven thousand, three hundred seventy-six".