690541616 has 20 divisors (see below), whose sum is σ = 1381084224. Its totient is φ = 334132800.

The previous prime is 690541613. The next prime is 690541633. The reversal of 690541616 is 616145096.

690541616 is an admirable number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 690541616.

It is not an unprimeable number, because it can be changed into a prime (690541613) 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 3 ways as a sum of consecutive naturals, for example, 695615 + ... + 696606.

Almost surely, 2^690541616 is an apocalyptic number.

It is an amenable number.

690541616 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

690541616 is a wasteful number, since it uses less digits than its factorization.

690541616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392260 (or 1392254 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 690541616 is about 26278.1585351790. The cubic root of 690541616 is about 883.8867404701.

The spelling of 690541616 in words is "six hundred ninety million, five hundred forty-one thousand, six hundred sixteen".