677972 has 6 divisors (see below), whose sum is σ = 1186458. Its totient is φ = 338984.

The previous prime is 677959. The next prime is 677983. The reversal of 677972 is 279776.

It can be written as a sum of positive squares in only one way, i.e., 662596 + 15376 = 814^2 + 124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84743 + ... + 84750.

It is an arithmetic number, because the mean of its divisors is an integer number (197743).

2⁶⁷⁷⁹⁷² is an apocalyptic number.

It is an amenable number.

677972 is a deficient number, since it is larger than the sum of its proper divisors (508486).

677972 is a wasteful number, since it uses less digits than its factorization.

677972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169497 (or 169495 counting only the distinct ones).

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

The square root of 677972 is about 823.3905513181. The cubic root of 677972 is about 87.8490870744.

The spelling of 677972 in words is "six hundred seventy-seven thousand, nine hundred seventy-two".