699472349 has 4 divisors (see below), whose sum is σ = 709054236. Its totient is φ = 689890464.

The previous prime is 699472331. The next prime is 699472363. The reversal of 699472349 is 943274996.

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

It can be written as a sum of positive squares in 2 ways, for example, as 409860025 + 289612324 = 20245^2 + 17018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699472349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 699472349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699472379) 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, 4790834 + ... + 4790979.

It is an arithmetic number, because the mean of its divisors is an integer number (177263559).

Almost surely, 2^699472349 is an apocalyptic number.

It is an amenable number.

699472349 is a deficient number, since it is larger than the sum of its proper divisors (9581887).

699472349 is an equidigital number, since it uses as much as digits as its factorization.

699472349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581886.

The product of its digits is 2939328, while the sum is 53.

The square root of 699472349 is about 26447.5395642014. The cubic root of 699472349 is about 887.6808487897.

The spelling of 699472349 in words is "six hundred ninety-nine million, four hundred seventy-two thousand, three hundred forty-nine".