422524987 has 8 divisors (see below), whose sum is σ = 447747696. Its totient is φ = 397343232.

The previous prime is 422524961. The next prime is 422525023. The reversal of 422524987 is 789425224.

It is a happy number.

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 422524987 - 2¹¹ = 422522939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422524937) 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, 12468 + ... + 31630.

It is an arithmetic number, because the mean of its divisors is an integer number (55968462).

Almost surely, 2^422524987 is an apocalyptic number.

422524987 is a deficient number, since it is larger than the sum of its proper divisors (25222709).

422524987 is a wasteful number, since it uses less digits than its factorization.

422524987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20477.

The product of its digits is 322560, while the sum is 43.

The square root of 422524987 is about 20555.4125961996. The cubic root of 422524987 is about 750.3849798350.

The spelling of 422524987 in words is "four hundred twenty-two million, five hundred twenty-four thousand, nine hundred eighty-seven".