693980761 has 8 divisors (see below), whose sum is σ = 703758600. Its totient is φ = 684271488.

The previous prime is 693980747. The next prime is 693980773. The reversal of 693980761 is 167089396.

It can be written as a sum of positive squares in 4 ways, for example, as 50851161 + 643129600 = 7131^2 + 25360^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 693980761 - 2¹¹ = 693978713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693980711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3415 + ... + 37411.

It is an arithmetic number, because the mean of its divisors is an integer number (87969825).

Almost surely, 2^693980761 is an apocalyptic number.

It is an amenable number.

693980761 is a deficient number, since it is larger than the sum of its proper divisors (9777839).

693980761 is a wasteful number, since it uses less digits than its factorization.

693980761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34283.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 693980761 is about 26343.5145908818. The cubic root of 693980761 is about 885.3516688946.

The spelling of 693980761 in words is "six hundred ninety-three million, nine hundred eighty thousand, seven hundred sixty-one".