1672672403 has 2 divisors, whose sum is σ = 1672672404. Its totient is φ = 1672672402.

The previous prime is 1672672369. The next prime is 1672672459. The reversal of 1672672403 is 3042762761.

It is a weak prime.

It is an emirp because it is prime and its reverse (3042762761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672672403 - 2⁸ = 1672672147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672672303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836336201 + 836336202.

It is an arithmetic number, because the mean of its divisors is an integer number (836336202).

Almost surely, 2^1672672403 is an apocalyptic number.

1672672403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672672403 is an equidigital number, since it uses as much as digits as its factorization.

1672672403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 1672672403 is about 40898.3178504936. The cubic root of 1672672403 is about 1187.0535118948.

The spelling of 1672672403 in words is "one billion, six hundred seventy-two million, six hundred seventy-two thousand, four hundred three".