2272979773 has 4 divisors (see below), whose sum is σ = 2273680480. Its totient is φ = 2272279068.

The previous prime is 2272979767. The next prime is 2272979789. The reversal of 2272979773 is 3779792722.

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 2272979773 - 2²⁵ = 2239425341 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 (2272976773) 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, 345465 + ... + 351982.

It is an arithmetic number, because the mean of its divisors is an integer number (568420120).

Almost surely, 2^2272979773 is an apocalyptic number.

It is an amenable number.

2272979773 is a deficient number, since it is larger than the sum of its proper divisors (700707).

2272979773 is an equidigital number, since it uses as much as digits as its factorization.

2272979773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700706.

The product of its digits is 4667544, while the sum is 55.

The square root of 2272979773 is about 47675.7776339306. Note that the first 3 decimals coincide. The cubic root of 2272979773 is about 1314.8166356538.

The spelling of 2272979773 in words is "two billion, two hundred seventy-two million, nine hundred seventy-nine thousand, seven hundred seventy-three".