63894169 has 8 divisors (see below), whose sum is σ = 67358240. Its totient is φ = 60440256.

The previous prime is 63894167. The next prime is 63894179. The reversal of 63894169 is 96149836.

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 63894169 - 2¹ = 63894167 is a prime.

It is a super-2 number, since 2×63894169² = 8164929664401122, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63894167) 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, 12817 + ... + 17089.

It is an arithmetic number, because the mean of its divisors is an integer number (8419780).

Almost surely, 2^63894169 is an apocalyptic number.

63894169 is the 4273-rd nonagonal number.

It is an amenable number.

63894169 is a deficient number, since it is larger than the sum of its proper divisors (3464071).

63894169 is a wasteful number, since it uses less digits than its factorization.

63894169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079.

The product of its digits is 279936, while the sum is 46.

The square root of 63894169 is about 7993.3828258129. The cubic root of 63894169 is about 399.7793971083.

The spelling of 63894169 in words is "sixty-three million, eight hundred ninety-four thousand, one hundred sixty-nine".