699628213 has 2 divisors, whose sum is σ = 699628214. Its totient is φ = 699628212.

The previous prime is 699628211. The next prime is 699628261. The reversal of 699628213 is 312826996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617870449 + 81757764 = 24857^2 + 9042^2 .

It is a cyclic number.

It is not a de Polignac number, because 699628213 - 2¹ = 699628211 is a prime.

Together with 699628211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699628211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349814106 + 349814107.

It is an arithmetic number, because the mean of its divisors is an integer number (349814107).

Almost surely, 2^699628213 is an apocalyptic number.

It is an amenable number.

699628213 is a deficient number, since it is larger than the sum of its proper divisors (1).

699628213 is an equidigital number, since it uses as much as digits as its factorization.

699628213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 699628213 is about 26450.4860635868. The cubic root of 699628213 is about 887.7467781113.

The spelling of 699628213 in words is "six hundred ninety-nine million, six hundred twenty-eight thousand, two hundred thirteen".