699677 has 4 divisors (see below), whose sum is σ = 763296. Its totient is φ = 636060.

The previous prime is 699649. The next prime is 699697. The reversal of 699677 is 776996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 699677 - 2¹⁰ = 698653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31793 + ... + 31814.

It is an arithmetic number, because the mean of its divisors is an integer number (190824).

2⁶⁹⁹⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

699677 is a deficient number, since it is larger than the sum of its proper divisors (63619).

699677 is a wasteful number, since it uses less digits than its factorization.

699677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63618.

The product of its digits is 142884, while the sum is 44.

The square root of 699677 is about 836.4669748412. The cubic root of 699677 is about 88.7767412640.

The spelling of 699677 in words is "six hundred ninety-nine thousand, six hundred seventy-seven".