671217454 has 8 divisors (see below), whose sum is σ = 1007094600. Its totient is φ = 335519256.

The previous prime is 671217451. The next prime is 671217461. The reversal of 671217454 is 454712176.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671217451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34929 + ... + 50620.

It is an arithmetic number, because the mean of its divisors is an integer number (125886825).

Almost surely, 2^671217454 is an apocalyptic number.

671217454 is a deficient number, since it is larger than the sum of its proper divisors (335877146).

671217454 is a wasteful number, since it uses less digits than its factorization.

671217454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89474.

The product of its digits is 47040, while the sum is 37.

The square root of 671217454 is about 25907.8647132488. The cubic root of 671217454 is about 875.5636983779.

The spelling of 671217454 in words is "six hundred seventy-one million, two hundred seventeen thousand, four hundred fifty-four".