421441597 has 4 divisors (see below), whose sum is σ = 421485120. Its totient is φ = 421398076.

The previous prime is 421441549. The next prime is 421441607. The reversal of 421441597 is 795144124.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 421441597 - 2⁷ = 421441469 is a prime.

It is a super-2 number, since 2×421441597² = 355226039363820818, 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 (421441697) 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, 54 + ... + 29032.

It is an arithmetic number, because the mean of its divisors is an integer number (105371280).

Almost surely, 2^421441597 is an apocalyptic number.

It is an amenable number.

421441597 is a deficient number, since it is larger than the sum of its proper divisors (43523).

421441597 is a wasteful number, since it uses less digits than its factorization.

421441597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43522.

The product of its digits is 40320, while the sum is 37.

The square root of 421441597 is about 20529.0427687216. The cubic root of 421441597 is about 749.7430805925.

The spelling of 421441597 in words is "four hundred twenty-one million, four hundred forty-one thousand, five hundred ninety-seven".