20484707 has 16 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 18984000.

The previous prime is 20484703. The next prime is 20484713. The reversal of 20484707 is 70748402.

It is a cyclic number.

It is not a de Polignac number, because 20484707 - 2² = 20484703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20484703) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 90128 + ... + 90354.

It is an arithmetic number, because the mean of its divisors is an integer number (1378944).

Almost surely, 2^20484707 is an apocalyptic number.

20484707 is a deficient number, since it is larger than the sum of its proper divisors (1578397).

20484707 is a wasteful number, since it uses less digits than its factorization.

20484707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 20484707 is about 4526.0034246562. The cubic root of 20484707 is about 273.6171104272.

The spelling of 20484707 in words is "twenty million, four hundred eighty-four thousand, seven hundred seven".