672276811 has 4 divisors (see below), whose sum is σ = 695458800. Its totient is φ = 649094824.

The previous prime is 672276809. The next prime is 672276823. The reversal of 672276811 is 118672276.

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 672276811 - 2¹ = 672276809 is a prime.

It is a super-2 number, since 2×672276811² = 903912221216659442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672376811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11590951 + ... + 11591008.

It is an arithmetic number, because the mean of its divisors is an integer number (173864700).

Almost surely, 2^672276811 is an apocalyptic number.

672276811 is a deficient number, since it is larger than the sum of its proper divisors (23181989).

672276811 is a wasteful number, since it uses less digits than its factorization.

672276811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23181988.

The product of its digits is 56448, while the sum is 40.

The square root of 672276811 is about 25928.3013519976. The cubic root of 672276811 is about 876.0240792329.

The spelling of 672276811 in words is "six hundred seventy-two million, two hundred seventy-six thousand, eight hundred eleven".