672610403 has 2 divisors, whose sum is σ = 672610404. Its totient is φ = 672610402.

The previous prime is 672610391. The next prime is 672610447. The reversal of 672610403 is 304016276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672610403 - 2¹² = 672606307 is a prime.

It is not a weakly prime, because it can be changed into another prime (672610303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336305201 + 336305202.

It is an arithmetic number, because the mean of its divisors is an integer number (336305202).

Almost surely, 2^672610403 is an apocalyptic number.

672610403 is a deficient number, since it is larger than the sum of its proper divisors (1).

672610403 is an equidigital number, since it uses as much as digits as its factorization.

672610403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 672610403 is about 25934.7335247540. The cubic root of 672610403 is about 876.1689532374.

Adding to 672610403 its reverse (304016276), we get a palindrome (976626679).

The spelling of 672610403 in words is "six hundred seventy-two million, six hundred ten thousand, four hundred three".