671611430 has 64 divisors (see below), whose sum is σ = 1460367360. Its totient is φ = 217240704.

The previous prime is 671611427. The next prime is 671611459. The reversal of 671611430 is 34116176.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 671611393 and 671611402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367499 + ... + 369321.

It is an arithmetic number, because the mean of its divisors is an integer number (22818240).

Almost surely, 2^671611430 is an apocalyptic number.

671611430 is an abundant number, since it is smaller than the sum of its proper divisors (788755930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671611430 is a wasteful number, since it uses less digits than its factorization.

671611430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 671611430 is about 25915.4670033168. The cubic root of 671611430 is about 875.7349710472.

The spelling of 671611430 in words is "six hundred seventy-one million, six hundred eleven thousand, four hundred thirty".