671733406 has 8 divisors (see below), whose sum is σ = 1012039560. Its totient is φ = 334386888.

The previous prime is 671733383. The next prime is 671733421. The reversal of 671733406 is 604337176.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739341 + ... + 740248.

It is an arithmetic number, because the mean of its divisors is an integer number (126504945).

Almost surely, 2^671733406 is an apocalyptic number.

671733406 is a deficient number, since it is larger than the sum of its proper divisors (340306154).

671733406 is a wasteful number, since it uses less digits than its factorization.

671733406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479818.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 671733406 is about 25917.8202401359. The cubic root of 671733406 is about 875.7879839343.

The spelling of 671733406 in words is "six hundred seventy-one million, seven hundred thirty-three thousand, four hundred six".