672840772 has 12 divisors (see below), whose sum is σ = 1178385516. Its totient is φ = 336159200.

The previous prime is 672840757. The next prime is 672840851. The reversal of 672840772 is 277048276.

It can be written as a sum of positive squares in 2 ways, for example, as 79138816 + 593701956 = 8896^2 + 24366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59443 + ... + 69850.

It is an arithmetic number, because the mean of its divisors is an integer number (98198793).

Almost surely, 2^672840772 is an apocalyptic number.

It is an amenable number.

672840772 is a deficient number, since it is larger than the sum of its proper divisors (505544744).

672840772 is a wasteful number, since it uses less digits than its factorization.

672840772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130598 (or 130596 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 672840772 is about 25939.1744664320. The cubic root of 672840772 is about 876.2689710810.

The spelling of 672840772 in words is "six hundred seventy-two million, eight hundred forty thousand, seven hundred seventy-two".