422982987 has 8 divisors (see below), whose sum is σ = 644545536. Its totient is φ = 241704552.

The previous prime is 422982971. The next prime is 422983007. The reversal of 422982987 is 789289224.

It is a happy number.

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

It is not a de Polignac number, because 422982987 - 2⁴ = 422982971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422982587) 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, 10071003 + ... + 10071044.

It is an arithmetic number, because the mean of its divisors is an integer number (80568192).

Almost surely, 2^422982987 is an apocalyptic number.

422982987 is a deficient number, since it is larger than the sum of its proper divisors (221562549).

422982987 is a wasteful number, since it uses less digits than its factorization.

422982987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20142057.

The product of its digits is 1161216, while the sum is 51.

The square root of 422982987 is about 20566.5501968609. The cubic root of 422982987 is about 750.6560109212.

The spelling of 422982987 in words is "four hundred twenty-two million, nine hundred eighty-two thousand, nine hundred eighty-seven".