699428699 has 4 divisors (see below), whose sum is σ = 723546960. Its totient is φ = 675310440.

The previous prime is 699428687. The next prime is 699428701. The reversal of 699428699 is 996824996.

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

It is a cyclic number.

It is not a de Polignac number, because 699428699 - 2¹⁶ = 699363163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699428629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12059087 + ... + 12059144.

It is an arithmetic number, because the mean of its divisors is an integer number (180886740).

Almost surely, 2^699428699 is an apocalyptic number.

699428699 is a deficient number, since it is larger than the sum of its proper divisors (24118261).

699428699 is a wasteful number, since it uses less digits than its factorization.

699428699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118260.

The product of its digits is 15116544, while the sum is 62.

The square root of 699428699 is about 26446.7143327862. The cubic root of 699428699 is about 887.6623834064.

The spelling of 699428699 in words is "six hundred ninety-nine million, four hundred twenty-eight thousand, six hundred ninety-nine".