671460381 has 8 divisors (see below), whose sum is σ = 994756160. Its totient is φ = 447640236.

The previous prime is 671460379. The next prime is 671460409. The reversal of 671460381 is 183064176.

It is not a de Polignac number, because 671460381 - 2¹ = 671460379 is a prime.

It is a super-2 number, since 2×671460381² = 901718086505330322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671460371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12434425 + ... + 12434478.

It is an arithmetic number, because the mean of its divisors is an integer number (124344520).

Almost surely, 2^671460381 is an apocalyptic number.

It is an amenable number.

671460381 is a deficient number, since it is larger than the sum of its proper divisors (323295779).

671460381 is a wasteful number, since it uses less digits than its factorization.

671460381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24868912 (or 24868906 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 671460381 is about 25912.5525759235. The cubic root of 671460381 is about 875.6693136330.

The spelling of 671460381 in words is "six hundred seventy-one million, four hundred sixty thousand, three hundred eighty-one".