1673435379 has 32 divisors (see below), whose sum is σ = 2797424640. Its totient is φ = 864439200.

The previous prime is 1673435369. The next prime is 1673435399. The reversal of 1673435379 is 9735343761.

It is not a de Polignac number, because 1673435379 - 2⁷ = 1673435251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1673435339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21114 + ... + 61584.

It is an arithmetic number, because the mean of its divisors is an integer number (87419520).

Almost surely, 2^1673435379 is an apocalyptic number.

1673435379 is a deficient number, since it is larger than the sum of its proper divisors (1123989261).

1673435379 is a wasteful number, since it uses less digits than its factorization.

1673435379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40671.

The product of its digits is 1428840, while the sum is 48.

The square root of 1673435379 is about 40907.6445056422. The cubic root of 1673435379 is about 1187.2339727480.

The spelling of 1673435379 in words is "one billion, six hundred seventy-three million, four hundred thirty-five thousand, three hundred seventy-nine".