1673680431 has 8 divisors (see below), whose sum is σ = 2236048000. Its totient is φ = 1113549912.

The previous prime is 1673680427. The next prime is 1673680439. The reversal of 1673680431 is 1340863761.

1673680431 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1673680431 - 2² = 1673680427 is a prime.

It is a super-2 number, since 2×1673680431² = 5602412370224691522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1673680431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673680439) 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, 557515 + ... + 560508.

It is an arithmetic number, because the mean of its divisors is an integer number (279506000).

Almost surely, 2^1673680431 is an apocalyptic number.

1673680431 is a deficient number, since it is larger than the sum of its proper divisors (562367569).

1673680431 is a wasteful number, since it uses less digits than its factorization.

1673680431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118525.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1673680431 is about 40910.6395818985. The cubic root of 1673680431 is about 1187.2919213774.

The spelling of 1673680431 in words is "one billion, six hundred seventy-three million, six hundred eighty thousand, four hundred thirty-one".