421882657 has 8 divisors (see below), whose sum is σ = 483077696. Its totient is φ = 360919152.

The previous prime is 421882607. The next prime is 421882667. The reversal of 421882657 is 756288124.

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 a de Polignac number, because none of the positive numbers 2^k-421882657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421882607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53958 + ... + 61279.

It is an arithmetic number, because the mean of its divisors is an integer number (60384712).

Almost surely, 2^421882657 is an apocalyptic number.

It is an amenable number.

421882657 is a deficient number, since it is larger than the sum of its proper divisors (61195039).

421882657 is a wasteful number, since it uses less digits than its factorization.

421882657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115767.

The product of its digits is 215040, while the sum is 43.

The square root of 421882657 is about 20539.7823016701. The cubic root of 421882657 is about 750.0045374540.

The spelling of 421882657 in words is "four hundred twenty-one million, eight hundred eighty-two thousand, six hundred fifty-seven".