1673435643 has 16 divisors (see below), whose sum is σ = 2446709376. Its totient is φ = 1008944640.

The previous prime is 1673435641. The next prime is 1673435651. The reversal of 1673435643 is 3465343761.

It is not a de Polignac number, because 1673435643 - 2¹ = 1673435641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1673435595 and 1673435604.

It is not an unprimeable number, because it can be changed into a prime (1673435641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125005 + ... + 137742.

It is an arithmetic number, because the mean of its divisors is an integer number (152919336).

Almost surely, 2^1673435643 is an apocalyptic number.

1673435643 is a deficient number, since it is larger than the sum of its proper divisors (773273733).

1673435643 is a wasteful number, since it uses less digits than its factorization.

1673435643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262954.

The product of its digits is 544320, while the sum is 42.

The square root of 1673435643 is about 40907.6477324228. The cubic root of 1673435643 is about 1187.2340351804.

The spelling of 1673435643 in words is "one billion, six hundred seventy-three million, four hundred thirty-five thousand, six hundred forty-three".