699708349 has 2 divisors, whose sum is σ = 699708350. Its totient is φ = 699708348.

The previous prime is 699708329. The next prime is 699708353. The reversal of 699708349 is 943807996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699232249 + 476100 = 26443^2 + 690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699708349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 699708349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699708329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349854174 + 349854175.

It is an arithmetic number, because the mean of its divisors is an integer number (349854175).

Almost surely, 2^699708349 is an apocalyptic number.

It is an amenable number.

699708349 is a deficient number, since it is larger than the sum of its proper divisors (1).

699708349 is an equidigital number, since it uses as much as digits as its factorization.

699708349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 699708349 is about 26452.0008505973. Note that the first 3 decimals coincide. The cubic root of 699708349 is about 887.7806712365.

The spelling of 699708349 in words is "six hundred ninety-nine million, seven hundred eight thousand, three hundred forty-nine".