689351253 has 4 divisors (see below), whose sum is σ = 919135008. Its totient is φ = 459567500.

The previous prime is 689351249. The next prime is 689351261. The reversal of 689351253 is 352153986.

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 689351253 - 2² = 689351249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689351353) 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, 114891873 + ... + 114891878.

It is an arithmetic number, because the mean of its divisors is an integer number (229783752).

Almost surely, 2^689351253 is an apocalyptic number.

It is an amenable number.

689351253 is a deficient number, since it is larger than the sum of its proper divisors (229783755).

689351253 is a wasteful number, since it uses less digits than its factorization.

689351253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229783754.

The product of its digits is 194400, while the sum is 42.

The square root of 689351253 is about 26255.4994810611. The cubic root of 689351253 is about 883.3785638957.

The spelling of 689351253 in words is "six hundred eighty-nine million, three hundred fifty-one thousand, two hundred fifty-three".