671326415 has 16 divisors (see below), whose sum is σ = 861126336. Its totient is φ = 501177600.

The previous prime is 671326393. The next prime is 671326457. The reversal of 671326415 is 514623176.

It is not a de Polignac number, because 671326415 - 2¹² = 671322319 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 66476 + ... + 75905.

It is an arithmetic number, because the mean of its divisors is an integer number (53820396).

Almost surely, 2^671326415 is an apocalyptic number.

671326415 is a deficient number, since it is larger than the sum of its proper divisors (189799921).

671326415 is a wasteful number, since it uses less digits than its factorization.

671326415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142450.

The product of its digits is 30240, while the sum is 35.

The square root of 671326415 is about 25909.9674835767. The cubic root of 671326415 is about 875.6110735535.

The spelling of 671326415 in words is "six hundred seventy-one million, three hundred twenty-six thousand, four hundred fifteen".