20460707 has 4 divisors (see below), whose sum is σ = 21664296. Its totient is φ = 19257120.

The previous prime is 20460697. The next prime is 20460721. The reversal of 20460707 is 70706402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20460707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20460757) 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 3 ways as a sum of consecutive naturals, for example, 601769 + ... + 601802.

It is an arithmetic number, because the mean of its divisors is an integer number (5416074).

Almost surely, 2^20460707 is an apocalyptic number.

20460707 is a deficient number, since it is larger than the sum of its proper divisors (1203589).

20460707 is a wasteful number, since it uses less digits than its factorization.

20460707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203588.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20460707 is about 4523.3513018557. The cubic root of 20460707 is about 273.5102115442.

The spelling of 20460707 in words is "twenty million, four hundred sixty thousand, seven hundred seven".