421474247 has 8 divisors (see below), whose sum is σ = 429784992. Its totient is φ = 413229600.

The previous prime is 421474231. The next prime is 421474303. The reversal of 421474247 is 742474124.

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 421474247 - 2⁴ = 421474231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421474847) 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, 3548 + ... + 29249.

It is an arithmetic number, because the mean of its divisors is an integer number (53723124).

Almost surely, 2^421474247 is an apocalyptic number.

421474247 is a deficient number, since it is larger than the sum of its proper divisors (8310745).

421474247 is a wasteful number, since it uses less digits than its factorization.

421474247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33049.

The product of its digits is 50176, while the sum is 35.

The square root of 421474247 is about 20529.8379681867. The cubic root of 421474247 is about 749.7624415033.

The spelling of 421474247 in words is "four hundred twenty-one million, four hundred seventy-four thousand, two hundred forty-seven".