672777 has 24 divisors (see below), whose sum is σ = 1135680. Its totient is φ = 375840.

The previous prime is 672767. The next prime is 672779. The reversal of 672777 is 777276.

It is a happy number.

It is not a de Polignac number, because 672777 - 2⁸ = 672521 is a prime.

672777 is a modest number, since divided by 777 gives 672 as remainder.

It is not an unprimeable number, because it can be changed into a prime (672779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3627 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (47320).

2⁶⁷²⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

672777 is a deficient number, since it is larger than the sum of its proper divisors (462903).

672777 is a wasteful number, since it uses less digits than its factorization.

672777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 250 counting only the distinct ones).

The product of its digits is 28812, while the sum is 36.

The square root of 672777 is about 820.2298458359. The cubic root of 672777 is about 87.6241285883.

The spelling of 672777 in words is "six hundred seventy-two thousand, seven hundred seventy-seven".