690812976 has 80 divisors (see below), whose sum is σ = 2081216000. Its totient is φ = 197370432.

The previous prime is 690812953. The next prime is 690812989. The reversal of 690812976 is 679218096.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4516 + ... + 37443.

It is an arithmetic number, because the mean of its divisors is an integer number (26015200).

Almost surely, 2^690812976 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 690812976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040608000).

690812976 is an abundant number, since it is smaller than the sum of its proper divisors (1390403024).

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

690812976 is a wasteful number, since it uses less digits than its factorization.

690812976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41991 (or 41971 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 690812976 is about 26283.3212513183. The cubic root of 690812976 is about 884.0025047191.

The spelling of 690812976 in words is "six hundred ninety million, eight hundred twelve thousand, nine hundred seventy-six".