699134725 has 12 divisors (see below), whose sum is σ = 881140900. Its totient is φ = 550137600.

The previous prime is 699134717. The next prime is 699134731. The reversal of 699134725 is 527431996.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 166771396 + 532363329 = 12914^2 + 23073^2 .

It is not a de Polignac number, because 699134725 - 2³ = 699134717 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227700 + ... + 230749.

Almost surely, 2^699134725 is an apocalyptic number.

It is an amenable number.

699134725 is a deficient number, since it is larger than the sum of its proper divisors (182006175).

699134725 is a wasteful number, since it uses less digits than its factorization.

699134725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458520 (or 458515 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 699134725 is about 26441.1558937956. The cubic root of 699134725 is about 887.5380027369.

It can be divided in two parts, 699 and 134725, that added together give a square (135424 = 368²).

The spelling of 699134725 in words is "six hundred ninety-nine million, one hundred thirty-four thousand, seven hundred twenty-five".