245673671 has 4 divisors (see below), whose sum is σ = 245710344. Its totient is φ = 245637000.

The previous prime is 245673661. The next prime is 245673677. The reversal of 245673671 is 176376542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176376542 = 2 ⋅88188271.

It is a cyclic number.

It is not a de Polignac number, because 245673671 - 2¹⁴ = 245657287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245673677) 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, 5105 + ... + 22746.

It is an arithmetic number, because the mean of its divisors is an integer number (61427586).

Almost surely, 2^245673671 is an apocalyptic number.

245673671 is a deficient number, since it is larger than the sum of its proper divisors (36673).

245673671 is an equidigital number, since it uses as much as digits as its factorization.

245673671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36672.

The product of its digits is 211680, while the sum is 41.

The square root of 245673671 is about 15673.9807005113. The cubic root of 245673671 is about 626.3054705494.

The spelling of 245673671 in words is "two hundred forty-five million, six hundred seventy-three thousand, six hundred seventy-one".