693449663 has 4 divisors (see below), whose sum is σ = 700182288. Its totient is φ = 686717040.

The previous prime is 693449651. The next prime is 693449681. The reversal of 693449663 is 366944396.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 693449663 - 2⁶ = 693449599 is a prime.

It is a super-2 number, since 2×693449663² = 961744870229627138, 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 (693449623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366158 + ... + 3366363.

It is an arithmetic number, because the mean of its divisors is an integer number (175045572).

Almost surely, 2^693449663 is an apocalyptic number.

693449663 is a deficient number, since it is larger than the sum of its proper divisors (6732625).

693449663 is a wasteful number, since it uses less digits than its factorization.

693449663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732624.

The product of its digits is 2519424, while the sum is 50.

The square root of 693449663 is about 26333.4324196448. The cubic root of 693449663 is about 885.1257603743.

The spelling of 693449663 in words is "six hundred ninety-three million, four hundred forty-nine thousand, six hundred sixty-three".