422813777 has 8 divisors (see below), whose sum is σ = 424744320. Its totient is φ = 420888240.

The previous prime is 422813759. The next prime is 422813789. The reversal of 422813777 is 777318224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422813777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422113777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387002 + ... + 388092.

It is an arithmetic number, because the mean of its divisors is an integer number (53093040).

Almost surely, 2^422813777 is an apocalyptic number.

It is an amenable number.

422813777 is a deficient number, since it is larger than the sum of its proper divisors (1930543).

422813777 is a wasteful number, since it uses less digits than its factorization.

422813777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503.

The product of its digits is 131712, while the sum is 41.

The square root of 422813777 is about 20562.4360667699. The cubic root of 422813777 is about 750.5559001612. Note that the first 3 decimals are identical.

The spelling of 422813777 in words is "four hundred twenty-two million, eight hundred thirteen thousand, seven hundred seventy-seven".