2020078897 has 16 divisors (see below), whose sum is σ = 2190545280. Its totient is φ = 1858550400.

The previous prime is 2020078889. The next prime is 2020078909. The reversal of 2020078897 is 7988700202.

It is a cyclic number.

It is not a de Polignac number, because 2020078897 - 2³ = 2020078889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020078807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31372 + ... + 70882.

It is an arithmetic number, because the mean of its divisors is an integer number (136909080).

Almost surely, 2^2020078897 is an apocalyptic number.

It is an amenable number.

2020078897 is a deficient number, since it is larger than the sum of its proper divisors (170466383).

2020078897 is a wasteful number, since it uses less digits than its factorization.

2020078897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39624.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 2020078897 is about 44945.2878175232. The cubic root of 2020078897 is about 1264.1233224443.

The spelling of 2020078897 in words is "two billion, twenty million, seventy-eight thousand, eight hundred ninety-seven".