693161620 has 12 divisors (see below), whose sum is σ = 1455639444. Its totient is φ = 277264640.

The previous prime is 693161617. The next prime is 693161633. The reversal of 693161620 is 26161396.

It can be written as a sum of positive squares in 2 ways, for example, as 448677124 + 244484496 = 21182^2 + 15636^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17329021 + ... + 17329060.

It is an arithmetic number, because the mean of its divisors is an integer number (121303287).

Almost surely, 2^693161620 is an apocalyptic number.

It is an amenable number.

693161620 is an abundant number, since it is smaller than the sum of its proper divisors (762477824).

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

693161620 is a wasteful number, since it uses less digits than its factorization.

693161620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34658090 (or 34658088 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 693161620 is about 26327.9627012802. The cubic root of 693161620 is about 885.0031897913.

The spelling of 693161620 in words is "six hundred ninety-three million, one hundred sixty-one thousand, six hundred twenty".