671400764 has 6 divisors (see below), whose sum is σ = 1174951344. Its totient is φ = 335700380.

The previous prime is 671400757. The next prime is 671400773. The reversal of 671400764 is 467004176.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83925092 + ... + 83925099.

It is an arithmetic number, because the mean of its divisors is an integer number (195825224).

Almost surely, 2^671400764 is an apocalyptic number.

It is an amenable number.

671400764 is a deficient number, since it is larger than the sum of its proper divisors (503550580).

671400764 is a wasteful number, since it uses less digits than its factorization.

671400764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167850195 (or 167850193 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 671400764 is about 25911.4022005757. The cubic root of 671400764 is about 875.6433968283.

The spelling of 671400764 in words is "six hundred seventy-one million, four hundred thousand, seven hundred sixty-four".