1673988403 has 8 divisors (see below), whose sum is σ = 1682736048. Its totient is φ = 1665261984.

The previous prime is 1673988401. The next prime is 1673988427. The reversal of 1673988403 is 3048893761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1673988403 - 2¹ = 1673988401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673988401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167125 + ... + 176857.

It is an arithmetic number, because the mean of its divisors is an integer number (210342006).

Almost surely, 2^1673988403 is an apocalyptic number.

1673988403 is a deficient number, since it is larger than the sum of its proper divisors (8747645).

1673988403 is an equidigital number, since it uses as much as digits as its factorization.

1673988403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10613.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 1673988403 is about 40914.4033684960. The cubic root of 1673988403 is about 1187.3647409821.

The spelling of 1673988403 in words is "one billion, six hundred seventy-three million, nine hundred eighty-eight thousand, four hundred three".