2020747807 has 4 divisors (see below), whose sum is σ = 2176189960. Its totient is φ = 1865305656.

The previous prime is 2020747783. The next prime is 2020747837. The reversal of 2020747807 is 7087470202.

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 2020747807 - 2¹⁹ = 2020223519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020747837) 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, 77721057 + ... + 77721082.

It is an arithmetic number, because the mean of its divisors is an integer number (544047490).

Almost surely, 2^2020747807 is an apocalyptic number.

2020747807 is a deficient number, since it is larger than the sum of its proper divisors (155442153).

2020747807 is a wasteful number, since it uses less digits than its factorization.

2020747807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155442152.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 2020747807 is about 44952.7285823675. The cubic root of 2020747807 is about 1264.2628370307.

The spelling of 2020747807 in words is "two billion, twenty million, seven hundred forty-seven thousand, eight hundred seven".