20214967 has 4 divisors (see below), whose sum is σ = 20232720. Its totient is φ = 20197216.

The previous prime is 20214959. The next prime is 20214977. The reversal of 20214967 is 76941202.

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

It is a cyclic number.

It is not a de Polignac number, because 20214967 - 2³ = 20214959 is a prime.

It is a super-2 number, since 2×20214967² = 817289781622178, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214937) 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, 7042 + ... + 9487.

It is an arithmetic number, because the mean of its divisors is an integer number (5058180).

Almost surely, 2^20214967 is an apocalyptic number.

20214967 is a deficient number, since it is larger than the sum of its proper divisors (17753).

20214967 is a wasteful number, since it uses less digits than its factorization.

20214967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17752.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20214967 is about 4496.1057594323. The cubic root of 20214967 is about 272.4108150194.

The spelling of 20214967 in words is "twenty million, two hundred fourteen thousand, nine hundred sixty-seven".