671352894 has 32 divisors (see below), whose sum is σ = 1526595840. Its totient is φ = 218579256.

The previous prime is 671352893. The next prime is 671352923. The reversal of 671352894 is 498253176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671352893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142242 + ... + 146885.

It is an arithmetic number, because the mean of its divisors is an integer number (47706120).

Almost surely, 2^671352894 is an apocalyptic number.

671352894 is an abundant number, since it is smaller than the sum of its proper divisors (855242946).

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

671352894 is a wasteful number, since it uses less digits than its factorization.

671352894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289181 (or 289175 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 671352894 is about 25910.4784594959. The cubic root of 671352894 is about 875.6225855891.

The spelling of 671352894 in words is "six hundred seventy-one million, three hundred fifty-two thousand, eight hundred ninety-four".