63334891 has 4 divisors (see below), whose sum is σ = 65377984. Its totient is φ = 61291800.

The previous prime is 63334883. The next prime is 63334913. The reversal of 63334891 is 19843336.

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 63334891 - 2³ = 63334883 is a prime.

It is a super-2 number, since 2×63334891² = 8022616835963762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63334891.

It is not an unprimeable number, because it can be changed into a prime (63334591) 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, 1021500 + ... + 1021561.

It is an arithmetic number, because the mean of its divisors is an integer number (16344496).

Almost surely, 2^63334891 is an apocalyptic number.

63334891 is a deficient number, since it is larger than the sum of its proper divisors (2043093).

63334891 is a wasteful number, since it uses less digits than its factorization.

63334891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043092.

The product of its digits is 46656, while the sum is 37.

The square root of 63334891 is about 7958.3221221562. The cubic root of 63334891 is about 398.6095283220.

The spelling of 63334891 in words is "sixty-three million, three hundred thirty-four thousand, eight hundred ninety-one".