4909864 has 8 divisors (see below), whose sum is σ = 9206010. Its totient is φ = 2454928.

The previous prime is 4909859. The next prime is 4909871. The reversal of 4909864 is 4689094.

It can be written as a sum of positive squares in only one way, i.e., 2748964 + 2160900 = 1658^2 + 1470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306859 + ... + 306874.

Almost surely, 2^4909864 is an apocalyptic number.

It is an amenable number.

4909864 is a deficient number, since it is larger than the sum of its proper divisors (4296146).

4909864 is a wasteful number, since it uses less digits than its factorization.

4909864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613739 (or 613735 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 4909864 is about 2215.8212924331. The cubic root of 4909864 is about 169.9638215977.

The spelling of 4909864 in words is "four million, nine hundred nine thousand, eight hundred sixty-four".