672949611 has 12 divisors (see below), whose sum is σ = 1005557280. Its totient is φ = 433162800.

The previous prime is 672949609. The next prime is 672949633. The reversal of 672949611 is 116949276.

672949611 is a `hidden beast` number, since 6 + 7 + 29 + 4 + 9 + 611 = 666.

It is not a de Polignac number, because 672949611 - 2¹ = 672949609 is a prime.

It is a super-2 number, since 2×672949611² = 905722357890102642, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (672949601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288915 + ... + 1289436.

It is an arithmetic number, because the mean of its divisors is an integer number (83796440).

Almost surely, 2^672949611 is an apocalyptic number.

672949611 is a deficient number, since it is larger than the sum of its proper divisors (332607669).

672949611 is a wasteful number, since it uses less digits than its factorization.

672949611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578386 (or 2578383 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 672949611 is about 25941.2723473618. The cubic root of 672949611 is about 876.3162170766.

The spelling of 672949611 in words is "six hundred seventy-two million, nine hundred forty-nine thousand, six hundred eleven".