672905732 has 6 divisors (see below), whose sum is σ = 1177585038. Its totient is φ = 336452864.

The previous prime is 672905719. The next prime is 672905741. The reversal of 672905732 is 237509276.

It can be written as a sum of positive squares in only one way, i.e., 671120836 + 1784896 = 25906^2 + 1336^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 672905732.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84113213 + ... + 84113220.

It is an arithmetic number, because the mean of its divisors is an integer number (196264173).

Almost surely, 2^672905732 is an apocalyptic number.

It is an amenable number.

672905732 is a deficient number, since it is larger than the sum of its proper divisors (504679306).

672905732 is a wasteful number, since it uses less digits than its factorization.

672905732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168226437 (or 168226435 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 672905732 is about 25940.4265963380. The cubic root of 672905732 is about 876.2971702245.

The spelling of 672905732 in words is "six hundred seventy-two million, nine hundred five thousand, seven hundred thirty-two".