421710477 has 8 divisors (see below), whose sum is σ = 562379616. Its totient is φ = 281090832.

The previous prime is 421710439. The next prime is 421710533. The reversal of 421710477 is 774017124.

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

It is not a de Polignac number, because 421710477 - 2¹⁴ = 421694093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421710407) 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, 18558 + ... + 34464.

It is an arithmetic number, because the mean of its divisors is an integer number (70297452).

Almost surely, 2^421710477 is an apocalyptic number.

It is an amenable number.

421710477 is a deficient number, since it is larger than the sum of its proper divisors (140669139).

421710477 is a wasteful number, since it uses less digits than its factorization.

421710477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24747.

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 421710477 is about 20535.5904955275. The cubic root of 421710477 is about 749.9024922124.

The spelling of 421710477 in words is "four hundred twenty-one million, seven hundred ten thousand, four hundred seventy-seven".