421846901 has 8 divisors (see below), whose sum is σ = 483853440. Its totient is φ = 360276048.

The previous prime is 421846897. The next prime is 421846913. The reversal of 421846901 is 109648124.

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 421846901 - 2² = 421846897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421846951) 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, 106841 + ... + 110718.

It is an arithmetic number, because the mean of its divisors is an integer number (60481680).

Almost surely, 2^421846901 is an apocalyptic number.

It is an amenable number.

421846901 is a deficient number, since it is larger than the sum of its proper divisors (62006539).

421846901 is a wasteful number, since it uses less digits than its factorization.

421846901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217843.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 421846901 is about 20538.9118747805. The cubic root of 421846901 is about 749.9833483710.

The spelling of 421846901 in words is "four hundred twenty-one million, eight hundred forty-six thousand, nine hundred one".