422815477 has 8 divisors (see below), whose sum is σ = 483646016. Its totient is φ = 362092032.

The previous prime is 422815453. The next prime is 422815487. The reversal of 422815477 is 774518224.

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 422815477 - 2¹⁵ = 422782709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422815487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18123 + ... + 34264.

It is an arithmetic number, because the mean of its divisors is an integer number (60455752).

Almost surely, 2^422815477 is an apocalyptic number.

It is an amenable number.

422815477 is a deficient number, since it is larger than the sum of its proper divisors (60830539).

422815477 is a wasteful number, since it uses less digits than its factorization.

422815477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53547.

The product of its digits is 125440, while the sum is 40.

The square root of 422815477 is about 20562.4774042429. The cubic root of 422815477 is about 750.5569060755.

The spelling of 422815477 in words is "four hundred twenty-two million, eight hundred fifteen thousand, four hundred seventy-seven".