672249076 has 6 divisors (see below), whose sum is σ = 1176435890. Its totient is φ = 336124536.

The previous prime is 672249073. The next prime is 672249077. The reversal of 672249076 is 670942276.

It can be written as a sum of positive squares in only one way, i.e., 418611600 + 253637476 = 20460^2 + 15926^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672249073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84031131 + ... + 84031138.

Almost surely, 2^672249076 is an apocalyptic number.

It is an amenable number.

672249076 is a deficient number, since it is larger than the sum of its proper divisors (504186814).

672249076 is a wasteful number, since it uses less digits than its factorization.

672249076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168062273 (or 168062271 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 672249076 is about 25927.7665061995. The cubic root of 672249076 is about 876.0120321805.

The spelling of 672249076 in words is "six hundred seventy-two million, two hundred forty-nine thousand, seventy-six".