671121402 has 32 divisors (see below), whose sum is σ = 1534815744. Its totient is φ = 191646000.

The previous prime is 671121391. The next prime is 671121431. The reversal of 671121402 is 204121176.

671121402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111777 + ... + 117627.

It is an arithmetic number, because the mean of its divisors is an integer number (47962992).

Almost surely, 2^671121402 is an apocalyptic number.

671121402 is an abundant number, since it is smaller than the sum of its proper divisors (863694342).

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

671121402 is a wasteful number, since it uses less digits than its factorization.

671121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 671121402 is about 25906.0109241079. The cubic root of 671121402 is about 875.5219316570.

Adding to 671121402 its reverse (204121176), we get a palindrome (875242578).

The spelling of 671121402 in words is "six hundred seventy-one million, one hundred twenty-one thousand, four hundred two".