693949 has 4 divisors (see below), whose sum is σ = 696160. Its totient is φ = 691740.

The previous prime is 693943. The next prime is 693961. The reversal of 693949 is 949396.

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 693949 - 2⁹ = 693437 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693943) 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, 537 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (174040).

2⁶⁹³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

693949 is a deficient number, since it is larger than the sum of its proper divisors (2211).

693949 is a wasteful number, since it uses less digits than its factorization.

693949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210.

The product of its digits is 52488, while the sum is 40.

The square root of 693949 is about 833.0360136273. The cubic root of 693949 is about 88.5338162236.

The spelling of 693949 in words is "six hundred ninety-three thousand, nine hundred forty-nine".