693490349 has 4 divisors (see below), whose sum is σ = 694705440. Its totient is φ = 692275260.

The previous prime is 693490327. The next prime is 693490351. The reversal of 693490349 is 943094396.

It is a happy number.

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 693490349 - 2⁸ = 693490093 is a prime.

It is a super-2 number, since 2×693490349² = 961857728312283602, 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 (693490649) 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, 606689 + ... + 607830.

It is an arithmetic number, because the mean of its divisors is an integer number (173676360).

Almost surely, 2^693490349 is an apocalyptic number.

It is an amenable number.

693490349 is a deficient number, since it is larger than the sum of its proper divisors (1215091).

693490349 is a wasteful number, since it uses less digits than its factorization.

693490349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215090.

The product of its (nonzero) digits is 629856, while the sum is 47.

The square root of 693490349 is about 26334.2049243944. The cubic root of 693490349 is about 885.1430707018.

The spelling of 693490349 in words is "six hundred ninety-three million, four hundred ninety thousand, three hundred forty-nine".