5990421 has 8 divisors (see below), whose sum is σ = 8004960. Its totient is φ = 3984752.

The previous prime is 5990417. The next prime is 5990423. The reversal of 5990421 is 1240995.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5990421 - 2² = 5990417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5990423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (1000620).

Almost surely, 2^5990421 is an apocalyptic number.

It is an amenable number.

5990421 is a deficient number, since it is larger than the sum of its proper divisors (2014539).

5990421 is a wasteful number, since it uses less digits than its factorization.

5990421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 5990421 is about 2447.5336565612. The cubic root of 5990421 is about 181.6153066755.

The spelling of 5990421 in words is "five million, nine hundred ninety thousand, four hundred twenty-one".