690500016 has 120 divisors (see below), whose sum is σ = 2063153664. Its totient is φ = 214824960.

The previous prime is 690500009. The next prime is 690500017. The reversal of 690500016 is 610005096.

It is not an unprimeable number, because it can be changed into a prime (690500017) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 309786 + ... + 312006.

Almost surely, 2^690500016 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 690500016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031576832).

690500016 is an abundant number, since it is smaller than the sum of its proper divisors (1372653648).

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

690500016 is a wasteful number, since it uses less digits than its factorization.

690500016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379 (or 2370 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 690500016 is about 26277.3669913863. The cubic root of 690500016 is about 883.8689909114.

The spelling of 690500016 in words is "six hundred ninety million, five hundred thousand, sixteen".