20464707 has 8 divisors (see below), whose sum is σ = 27733840. Its totient is φ = 13419360.

The previous prime is 20464669. The next prime is 20464711. The reversal of 20464707 is 70746402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20464707 - 2⁶ = 20464643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20464757) 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, 55732 + ... + 56097.

It is an arithmetic number, because the mean of its divisors is an integer number (3466730).

Almost surely, 2^20464707 is an apocalyptic number.

20464707 is a deficient number, since it is larger than the sum of its proper divisors (7269133).

20464707 is a wasteful number, since it uses less digits than its factorization.

20464707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111893.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 20464707 is about 4523.7934302972. The cubic root of 20464707 is about 273.5280338276.

The spelling of 20464707 in words is "twenty million, four hundred sixty-four thousand, seven hundred seven".