471052421 has 4 divisors (see below), whose sum is σ = 538345632. Its totient is φ = 403759212.

The previous prime is 471052369. The next prime is 471052447. The reversal of 471052421 is 124250174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124250174 = 2 ⋅62125087.

It is a cyclic number.

It is not a de Polignac number, because 471052421 - 2¹⁴ = 471036037 is a prime.

It is a super-2 number, since 2×471052421² = 443780766659922482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471052451) 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, 33646595 + ... + 33646608.

It is an arithmetic number, because the mean of its divisors is an integer number (134586408).

Almost surely, 2^471052421 is an apocalyptic number.

It is an amenable number.

471052421 is a deficient number, since it is larger than the sum of its proper divisors (67293211).

471052421 is an equidigital number, since it uses as much as digits as its factorization.

471052421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67293210.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 471052421 is about 21703.7420966984. The cubic root of 471052421 is about 778.0778999808.

The spelling of 471052421 in words is "four hundred seventy-one million, fifty-two thousand, four hundred twenty-one".