699473399 has 4 divisors (see below), whose sum is σ = 700848120. Its totient is φ = 698098680.

The previous prime is 699473387. The next prime is 699473431. The reversal of 699473399 is 993374996.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699473399 is a prime.

It is a super-2 number, since 2×699473399² = 978526071817226402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699473329) 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, 686597 + ... + 687614.

It is an arithmetic number, because the mean of its divisors is an integer number (175212030).

Almost surely, 2^699473399 is an apocalyptic number.

699473399 is a deficient number, since it is larger than the sum of its proper divisors (1374721).

699473399 is a wasteful number, since it uses less digits than its factorization.

699473399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374720.

The product of its digits is 9920232, while the sum is 59.

The square root of 699473399 is about 26447.5594148118. The cubic root of 699473399 is about 887.6812929647.

The spelling of 699473399 in words is "six hundred ninety-nine million, four hundred seventy-three thousand, three hundred ninety-nine".