65863884 has 12 divisors (see below), whose sum is σ = 153682424. Its totient is φ = 21954624.

The previous prime is 65863877. The next prime is 65863913. The reversal of 65863884 is 48836856.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744317 + ... + 2744340.

Almost surely, 2^65863884 is an apocalyptic number.

It is an amenable number.

65863884 is an abundant number, since it is smaller than the sum of its proper divisors (87818540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65863884 is a wasteful number, since it uses less digits than its factorization.

65863884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488664 (or 5488662 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 65863884 is about 8115.6567201921. The cubic root of 65863884 is about 403.8459939745.

The spelling of 65863884 in words is "sixty-five million, eight hundred sixty-three thousand, eight hundred eighty-four".