20814701 has 4 divisors (see below), whose sum is σ = 21719712. Its totient is φ = 19909692.

The previous prime is 20814691. The next prime is 20814719. The reversal of 20814701 is 10741802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20814701 - 2¹⁴ = 20798317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 904987 = 20814701 / (2 + 0 + 8 + 1 + 4 + 7 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20814791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452471 + ... + 452516.

It is an arithmetic number, because the mean of its divisors is an integer number (5429928).

Almost surely, 2^20814701 is an apocalyptic number.

It is an amenable number.

20814701 is a deficient number, since it is larger than the sum of its proper divisors (905011).

20814701 is an equidigital number, since it uses as much as digits as its factorization.

20814701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905010.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 20814701 is about 4562.3131194603. The cubic root of 20814701 is about 275.0785494623.

The spelling of 20814701 in words is "twenty million, eight hundred fourteen thousand, seven hundred one".