672866087 has 4 divisors (see below), whose sum is σ = 673840536. Its totient is φ = 671891640.

The previous prime is 672866083. The next prime is 672866099. The reversal of 672866087 is 780668276.

It is a happy number.

672866087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 672866087 - 2² = 672866083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672866083) 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, 486188 + ... + 487569.

It is an arithmetic number, because the mean of its divisors is an integer number (168460134).

Almost surely, 2^672866087 is an apocalyptic number.

672866087 is a deficient number, since it is larger than the sum of its proper divisors (974449).

672866087 is an equidigital number, since it uses as much as digits as its factorization.

672866087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974448.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 672866087 is about 25939.6624303401. The cubic root of 672866087 is about 876.2799605413.

The spelling of 672866087 in words is "six hundred seventy-two million, eight hundred sixty-six thousand, eighty-seven".