693139982 has 8 divisors (see below), whose sum is σ = 1039823400. Its totient is φ = 346532184.

The previous prime is 693139961. The next prime is 693139987. The reversal of 693139982 is 289931396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 693139982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693139987) 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 in 3 ways as a sum of consecutive naturals, for example, 20144 + ... + 42332.

It is an arithmetic number, because the mean of its divisors is an integer number (129977925).

Almost surely, 2^693139982 is an apocalyptic number.

693139982 is a deficient number, since it is larger than the sum of its proper divisors (346683418).

693139982 is a wasteful number, since it uses less digits than its factorization.

693139982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37810.

The product of its digits is 629856, while the sum is 50.

The square root of 693139982 is about 26327.5517661631. The cubic root of 693139982 is about 884.9939808288.

The spelling of 693139982 in words is "six hundred ninety-three million, one hundred thirty-nine thousand, nine hundred eighty-two".