690620384322 has 54 divisors (see below), whose sum is σ = 1644834304659. Its totient is φ = 209267151720.

The previous prime is 690620384281. The next prime is 690620384323. The reversal of 690620384322 is 223483026096.

It is a happy number.

690620384322 is a `hidden beast` number, since 6 + 9 + 0 + 6 + 203 + 8 + 432 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 345310192161 + 345310192161 = 587631^2 + 587631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=587631.

It is not an unprimeable number, because it can be changed into a prime (690620384323) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 38774743 + ... + 38792549.

Almost surely, 2^690620384322 is an apocalyptic number.

690620384322 is an abundant number, since it is smaller than the sum of its proper divisors (954213920337).

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

690620384322 is an equidigital number, since it uses as much as digits as its factorization.

690620384322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35644 (or 17823 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 690620384322 in words is "six hundred ninety billion, six hundred twenty million, three hundred eighty-four thousand, three hundred twenty-two".