1673429687 has 4 divisors (see below), whose sum is σ = 1680934080. Its totient is φ = 1665925296.

The previous prime is 1673429671. The next prime is 1673429701. The reversal of 1673429687 is 7869243761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1673429687 - 2⁴ = 1673429671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673429627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3751862 + ... + 3752307.

It is an arithmetic number, because the mean of its divisors is an integer number (420233520).

Almost surely, 2^1673429687 is an apocalyptic number.

1673429687 is a deficient number, since it is larger than the sum of its proper divisors (7504393).

1673429687 is an equidigital number, since it uses as much as digits as its factorization.

1673429687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504392.

The product of its digits is 3048192, while the sum is 53.

The square root of 1673429687 is about 40907.5749342344. The cubic root of 1673429687 is about 1187.2326266661.

The spelling of 1673429687 in words is "one billion, six hundred seventy-three million, four hundred twenty-nine thousand, six hundred eighty-seven".