679772 has 6 divisors (see below), whose sum is σ = 1189608. Its totient is φ = 339884.

The previous prime is 679753. The next prime is 679781. The reversal of 679772 is 277976.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

679772 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84968 + ... + 84975.

It is an arithmetic number, because the mean of its divisors is an integer number (198268).

2⁶⁷⁹⁷⁷² is an apocalyptic number.

It is an amenable number.

679772 is a deficient number, since it is larger than the sum of its proper divisors (509836).

679772 is a wasteful number, since it uses less digits than its factorization.

679772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169947 (or 169945 counting only the distinct ones).

The product of its digits is 37044, while the sum is 38.

The square root of 679772 is about 824.4828682271. The cubic root of 679772 is about 87.9267641370.

The spelling of 679772 in words is "six hundred seventy-nine thousand, seven hundred seventy-two".