20093671 has 4 divisors (see below), whose sum is σ = 21639352. Its totient is φ = 18547992.

The previous prime is 20093669. The next prime is 20093681. The reversal of 20093671 is 17639002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17639002 = 2 ⋅8819501.

It is a cyclic number.

It is not a de Polignac number, because 20093671 - 2¹ = 20093669 is a prime.

It is a super-2 number, since 2×20093671² = 807511228512482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20093681) 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, 772821 + ... + 772846.

It is an arithmetic number, because the mean of its divisors is an integer number (5409838).

Almost surely, 2^20093671 is an apocalyptic number.

20093671 is a deficient number, since it is larger than the sum of its proper divisors (1545681).

20093671 is a wasteful number, since it uses less digits than its factorization.

20093671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545680.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20093671 is about 4482.5964574117. The cubic root of 20093671 is about 271.8648721466.

The spelling of 20093671 in words is "twenty million, ninety-three thousand, six hundred seventy-one".