1680430087 has 8 divisors (see below), whose sum is σ = 1925078400. Its totient is φ = 1436928504.

The previous prime is 1680430061. The next prime is 1680430123. The reversal of 1680430087 is 7800340861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1680430087 - 2²³ = 1672041479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680430187) 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, 283537 + ... + 289402.

It is an arithmetic number, because the mean of its divisors is an integer number (240634800).

Almost surely, 2^1680430087 is an apocalyptic number.

1680430087 is a deficient number, since it is larger than the sum of its proper divisors (244648313).

1680430087 is an equidigital number, since it uses as much as digits as its factorization.

1680430087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573365.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1680430087 is about 40993.0492522818. The cubic root of 1680430087 is about 1188.8858264829.

The spelling of 1680430087 in words is "one billion, six hundred eighty million, four hundred thirty thousand, eighty-seven".