1671678241 has 8 divisors (see below), whose sum is σ = 1721791400. Its totient is φ = 1621824768.

The previous prime is 1671678163. The next prime is 1671678251. The reversal of 1671678241 is 1428761761.

It can be written as a sum of positive squares in 4 ways, for example, as 1283430625 + 388247616 = 35825^2 + 19704^2 .

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 1671678241 - 2⁹ = 1671677729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1671678251) 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, 51816 + ... + 77641.

It is an arithmetic number, because the mean of its divisors is an integer number (215223925).

Almost surely, 2^1671678241 is an apocalyptic number.

It is an amenable number.

1671678241 is a deficient number, since it is larger than the sum of its proper divisors (50113159).

1671678241 is a wasteful number, since it uses less digits than its factorization.

1671678241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129843.

The product of its digits is 112896, while the sum is 43.

The square root of 1671678241 is about 40886.1619744382. The cubic root of 1671678241 is about 1186.8182880353.

The spelling of 1671678241 in words is "one billion, six hundred seventy-one million, six hundred seventy-eight thousand, two hundred forty-one".