679380653 has 4 divisors (see below), whose sum is σ = 776435040. Its totient is φ = 582326268.

The previous prime is 679380649. The next prime is 679380677. The reversal of 679380653 is 356083976.

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 679380653 - 2² = 679380649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679380598 and 679380607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679380613) 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, 48527183 + ... + 48527196.

It is an arithmetic number, because the mean of its divisors is an integer number (194108760).

Almost surely, 2^679380653 is an apocalyptic number.

It is an amenable number.

679380653 is a deficient number, since it is larger than the sum of its proper divisors (97054387).

679380653 is an equidigital number, since it uses as much as digits as its factorization.

679380653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97054386.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 679380653 is about 26064.9314789048. The cubic root of 679380653 is about 879.0988765452.

The spelling of 679380653 in words is "six hundred seventy-nine million, three hundred eighty thousand, six hundred fifty-three".