671004451 has 8 divisors (see below), whose sum is σ = 726367040. Its totient is φ = 616177152.

The previous prime is 671004443. The next prime is 671004469. The reversal of 671004451 is 154400176.

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

It is a cyclic number.

It is not a de Polignac number, because 671004451 - 2³ = 671004443 is a prime.

It is a super-2 number, since 2×671004451² = 900493946523622802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671004431) 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, 131211 + ... + 136228.

It is an arithmetic number, because the mean of its divisors is an integer number (90795880).

Almost surely, 2^671004451 is an apocalyptic number.

671004451 is a deficient number, since it is larger than the sum of its proper divisors (55362589).

671004451 is a wasteful number, since it uses less digits than its factorization.

671004451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267645.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 671004451 is about 25903.7536083094. The cubic root of 671004451 is about 875.4710719499.

The spelling of 671004451 in words is "six hundred seventy-one million, four thousand, four hundred fifty-one".