672905803 has 2 divisors, whose sum is σ = 672905804. Its totient is φ = 672905802.

The previous prime is 672905743. The next prime is 672905813. The reversal of 672905803 is 308509276.

672905803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672905803 - 2²⁹ = 136034891 is a prime.

It is a super-2 number, since 2×672905803² = 905604439422149618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672905813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336452901 + 336452902.

It is an arithmetic number, because the mean of its divisors is an integer number (336452902).

Almost surely, 2^672905803 is an apocalyptic number.

672905803 is a deficient number, since it is larger than the sum of its proper divisors (1).

672905803 is an equidigital number, since it uses as much as digits as its factorization.

672905803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 672905803 is about 25940.4279648583. The cubic root of 672905803 is about 876.2972010447.

The spelling of 672905803 in words is "six hundred seventy-two million, nine hundred five thousand, eight hundred three".