690672396 has 96 divisors (see below), whose sum is σ = 1746360000. Its totient is φ = 211673088.

The previous prime is 690672391. The next prime is 690672403. The reversal of 690672396 is 693276096.

It is not an unprimeable number, because it can be changed into a prime (690672391) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1978830 + ... + 1979178.

It is an arithmetic number, because the mean of its divisors is an integer number (18191250).

Almost surely, 2^690672396 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 690672396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873180000).

690672396 is an abundant number, since it is smaller than the sum of its proper divisors (1055687604).

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

690672396 is a wasteful number, since it uses less digits than its factorization.

690672396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 690672396 is about 26280.6467956936. The cubic root of 690672396 is about 883.9425360024.

The spelling of 690672396 in words is "six hundred ninety million, six hundred seventy-two thousand, three hundred ninety-six".