421175479 has 4 divisors (see below), whose sum is σ = 427107600. Its totient is φ = 415243360.

The previous prime is 421175473. The next prime is 421175509. The reversal of 421175479 is 974571124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421175479 - 2⁷ = 421175351 is a prime.

It is a super-2 number, since 2×421175479² = 354777568221758882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421175473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965954 + ... + 2966095.

It is an arithmetic number, because the mean of its divisors is an integer number (106776900).

Almost surely, 2^421175479 is an apocalyptic number.

421175479 is a deficient number, since it is larger than the sum of its proper divisors (5932121).

421175479 is an equidigital number, since it uses as much as digits as its factorization.

421175479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932120.

The product of its digits is 70560, while the sum is 40.

The square root of 421175479 is about 20522.5602447648. The cubic root of 421175479 is about 749.5852397112.

The spelling of 421175479 in words is "four hundred twenty-one million, one hundred seventy-five thousand, four hundred seventy-nine".