679423969 has 8 divisors (see below), whose sum is σ = 781135488. Its totient is φ = 578875200.

The previous prime is 679423967. The next prime is 679424017. The reversal of 679423969 is 969324976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 679423969 - 2¹ = 679423967 is a prime.

It is a super-2 number, since 2×679423969² = 923233859303425922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679423967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289432 + ... + 291769.

It is an arithmetic number, because the mean of its divisors is an integer number (97641936).

Almost surely, 2^679423969 is an apocalyptic number.

It is an amenable number.

679423969 is a deficient number, since it is larger than the sum of its proper divisors (101711519).

679423969 is a wasteful number, since it uses less digits than its factorization.

679423969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581375.

The product of its digits is 4408992, while the sum is 55.

The square root of 679423969 is about 26065.7623905383. The cubic root of 679423969 is about 879.1175593644.

The spelling of 679423969 in words is "six hundred seventy-nine million, four hundred twenty-three thousand, nine hundred sixty-nine".