605456421 has 8 divisors (see below), whose sum is σ = 819324384. Its totient is φ = 397613040.

The previous prime is 605456417. The next prime is 605456431. The reversal of 605456421 is 124654506.

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

It is not a de Polignac number, because 605456421 - 2² = 605456417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605456431) 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, 1505910 + ... + 1506311.

It is an arithmetic number, because the mean of its divisors is an integer number (102415548).

Almost surely, 2^605456421 is an apocalyptic number.

It is an amenable number.

605456421 is a deficient number, since it is larger than the sum of its proper divisors (213867963).

605456421 is a wasteful number, since it uses less digits than its factorization.

605456421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012291.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 605456421 is about 24606.0240794810. The cubic root of 605456421 is about 845.9816892683.

It can be divided in two parts, 60545 and 6421, that added together give a palindrome (66966).

The spelling of 605456421 in words is "six hundred five million, four hundred fifty-six thousand, four hundred twenty-one".