672276947 has 4 divisors (see below), whose sum is σ = 677184216. Its totient is φ = 667369680.

The previous prime is 672276937. The next prime is 672276949. The reversal of 672276947 is 749672276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672276947 - 2⁴ = 672276931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 672276895 and 672276904.

It is not an unprimeable number, because it can be changed into a prime (672276949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453429 + ... + 2453702.

It is an arithmetic number, because the mean of its divisors is an integer number (169296054).

Almost surely, 2^672276947 is an apocalyptic number.

672276947 is a deficient number, since it is larger than the sum of its proper divisors (4907269).

672276947 is a wasteful number, since it uses less digits than its factorization.

672276947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907268.

The product of its digits is 1778112, while the sum is 50.

The square root of 672276947 is about 25928.3039746143. The cubic root of 672276947 is about 876.0241383054.

The spelling of 672276947 in words is "six hundred seventy-two million, two hundred seventy-six thousand, nine hundred forty-seven".