693490052 has 6 divisors (see below), whose sum is σ = 1213607598. Its totient is φ = 346745024.

The previous prime is 693490051. The next prime is 693490067. The reversal of 693490052 is 250094396.

It can be written as a sum of positive squares in only one way, i.e., 581002816 + 112487236 = 24104^2 + 10606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 693489988 and 693490015.

It is not an unprimeable number, because it can be changed into a prime (693490051) by changing a digit.

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 as a sum of consecutive naturals, namely, 86686253 + ... + 86686260.

It is an arithmetic number, because the mean of its divisors is an integer number (202267933).

Almost surely, 2^693490052 is an apocalyptic number.

It is an amenable number.

693490052 is a deficient number, since it is larger than the sum of its proper divisors (520117546).

693490052 is a wasteful number, since it uses less digits than its factorization.

693490052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173372517 (or 173372515 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 693490052 is about 26334.1992853400. The cubic root of 693490052 is about 885.1429443422.

The spelling of 693490052 in words is "six hundred ninety-three million, four hundred ninety thousand, fifty-two".