20070889 has 4 divisors (see below), whose sum is σ = 20265856. Its totient is φ = 19875924.

The previous prime is 20070887. The next prime is 20070899. The reversal of 20070889 is 98807002.

It is a happy number.

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 20070889 - 2¹ = 20070887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20070887) 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, 97329 + ... + 97534.

It is an arithmetic number, because the mean of its divisors is an integer number (5066464).

Almost surely, 2^20070889 is an apocalyptic number.

It is an amenable number.

20070889 is a deficient number, since it is larger than the sum of its proper divisors (194967).

20070889 is a wasteful number, since it uses less digits than its factorization.

20070889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194966.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 20070889 is about 4480.0545755604. The cubic root of 20070889 is about 271.7620874149.

The spelling of 20070889 in words is "twenty million, seventy thousand, eight hundred eighty-nine".