693614989 has 4 divisors (see below), whose sum is σ = 693696640. Its totient is φ = 693533340.

The previous prime is 693614951. The next prime is 693614993. The reversal of 693614989 is 989416396.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 693614989 - 2²⁷ = 559397261 is a prime.

It is a super-2 number, since 2×693614989² = 962203505930940242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693614939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26379 + ... + 45640.

It is an arithmetic number, because the mean of its divisors is an integer number (173424160).

Almost surely, 2^693614989 is an apocalyptic number.

It is an amenable number.

693614989 is a deficient number, since it is larger than the sum of its proper divisors (81651).

693614989 is an equidigital number, since it uses as much as digits as its factorization.

693614989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81650.

The product of its digits is 2519424, while the sum is 55.

The square root of 693614989 is about 26336.5713220229. The cubic root of 693614989 is about 885.1960960124.

The spelling of 693614989 in words is "six hundred ninety-three million, six hundred fourteen thousand, nine hundred eighty-nine".