422776877 has 8 divisors (see below), whose sum is σ = 438744600. Its totient is φ = 406901824.

The previous prime is 422776867. The next prime is 422776889. The reversal of 422776877 is 778677224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19811401 + 402965476 = 4451^2 + 20074^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 422776877 - 2²⁰ = 421728301 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 (422776807) 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, 13802 + ... + 32187.

It is an arithmetic number, because the mean of its divisors is an integer number (54843075).

Almost surely, 2^422776877 is an apocalyptic number.

It is an amenable number.

422776877 is a deficient number, since it is larger than the sum of its proper divisors (15967723).

422776877 is a wasteful number, since it uses less digits than its factorization.

422776877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46335.

The product of its digits is 1843968, while the sum is 50.

The square root of 422776877 is about 20561.5387799649. The cubic root of 422776877 is about 750.5340652385.

The spelling of 422776877 in words is "four hundred twenty-two million, seven hundred seventy-six thousand, eight hundred seventy-seven".