690321016 has 48 divisors (see below), whose sum is σ = 1642564440. Its totient is φ = 268954560.

The previous prime is 690321013. The next prime is 690321019. The reversal of 690321016 is 610123096.

690321016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690321013) and next prime (690321019).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690321013) 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, 75735 + ... + 84358.

Almost surely, 2^690321016 is an apocalyptic number.

It is an amenable number.

690321016 is an abundant number, since it is smaller than the sum of its proper divisors (952243424).

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

690321016 is a wasteful number, since it uses less digits than its factorization.

690321016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160124 (or 160113 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 690321016 is about 26273.9607977176. The cubic root of 690321016 is about 883.7926084741.

The spelling of 690321016 in words is "six hundred ninety million, three hundred twenty-one thousand, sixteen".