603453421 has 4 divisors (see below), whose sum is σ = 603922144. Its totient is φ = 602984700.

The previous prime is 603453397. The next prime is 603453439. The reversal of 603453421 is 124354306.

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: 124354306 = 2 ⋅62177153.

It is a cyclic number.

It is not a de Polignac number, because 603453421 - 2¹⁹ = 602929133 is a prime.

It is a super-5 number, since 5×603453421⁵ (a number of 45 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 603453421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (603453491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232425 + ... + 235006.

It is an arithmetic number, because the mean of its divisors is an integer number (150980536).

Almost surely, 2^603453421 is an apocalyptic number.

It is an amenable number.

603453421 is a deficient number, since it is larger than the sum of its proper divisors (468723).

603453421 is a wasteful number, since it uses less digits than its factorization.

603453421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468722.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 603453421 is about 24565.2889459904. The cubic root of 603453421 is about 845.0477528654.

The spelling of 603453421 in words is "six hundred three million, four hundred fifty-three thousand, four hundred twenty-one".