690803712 has 132 divisors (see below), whose sum is σ = 2082044640. Its totient is φ = 220188672.

The previous prime is 690803699. The next prime is 690803713. The reversal of 690803712 is 217308096.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690803713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210339 + ... + 213597.

Almost surely, 2^690803712 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 690803712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041022320).

690803712 is an abundant number, since it is smaller than the sum of its proper divisors (1391240928).

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

690803712 is a wasteful number, since it uses less digits than its factorization.

690803712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 690803712 is about 26283.1450172920. The cubic root of 690803712 is about 883.9985531258.

The spelling of 690803712 in words is "six hundred ninety million, eight hundred three thousand, seven hundred twelve".