64803861 has 8 divisors (see below), whose sum is σ = 96005760. Its totient is φ = 43202556.

The previous prime is 64803853. The next prime is 64803911. The reversal of 64803861 is 16830846.

It is a happy number.

64803861 is a `hidden beast` number, since 648 + 0 + 3 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 64803861 - 2³ = 64803853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64803061) 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, 1200045 + ... + 1200098.

It is an arithmetic number, because the mean of its divisors is an integer number (12000720).

Almost surely, 2^64803861 is an apocalyptic number.

It is an amenable number.

64803861 is a deficient number, since it is larger than the sum of its proper divisors (31201899).

64803861 is a wasteful number, since it uses less digits than its factorization.

64803861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400152 (or 2400146 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 64803861 is about 8050.0845337176. The cubic root of 64803861 is about 401.6677473002.

The spelling of 64803861 in words is "sixty-four million, eight hundred three thousand, eight hundred sixty-one".