41978663 has 4 divisors (see below), whose sum is σ = 42004440. Its totient is φ = 41952888.

The previous prime is 41978659. The next prime is 41978687. The reversal of 41978663 is 36687914.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41978663 - 2² = 41978659 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 (41978603) 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, 10268 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (10501110).

Almost surely, 2^41978663 is an apocalyptic number.

41978663 is a deficient number, since it is larger than the sum of its proper divisors (25777).

41978663 is a wasteful number, since it uses less digits than its factorization.

41978663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25776.

The product of its digits is 217728, while the sum is 44.

The square root of 41978663 is about 6479.0943039903. The cubic root of 41978663 is about 347.5437910412.

The spelling of 41978663 in words is "forty-one million, nine hundred seventy-eight thousand, six hundred sixty-three".