679740743 has 8 divisors (see below), whose sum is σ = 757313280. Its totient is φ = 604797880.

The previous prime is 679740731. The next prime is 679740769. The reversal of 679740743 is 347047976.

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

It is not a de Polignac number, because 679740743 - 2⁶ = 679740679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679740343) 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, 656873 + ... + 657906.

It is an arithmetic number, because the mean of its divisors is an integer number (94664160).

Almost surely, 2^679740743 is an apocalyptic number.

679740743 is a deficient number, since it is larger than the sum of its proper divisors (77572537).

679740743 is a wasteful number, since it uses less digits than its factorization.

679740743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314837.

The product of its (nonzero) digits is 889056, while the sum is 47.

The square root of 679740743 is about 26071.8381208537. The cubic root of 679740743 is about 879.2541644543.

The spelling of 679740743 in words is "six hundred seventy-nine million, seven hundred forty thousand, seven hundred forty-three".