5318421 has 8 divisors (see below), whose sum is σ = 7103040. Its totient is φ = 3539712.

The previous prime is 5318363. The next prime is 5318431. The reversal of 5318421 is 1248135.

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

It is not a de Polignac number, because 5318421 - 2⁷ = 5318293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5318391 and 5318400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5318431) 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, 1461 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (887880).

Almost surely, 2^5318421 is an apocalyptic number.

It is an amenable number.

5318421 is a deficient number, since it is larger than the sum of its proper divisors (1784619).

5318421 is a wasteful number, since it uses less digits than its factorization.

5318421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955.

The product of its digits is 960, while the sum is 24.

The square root of 5318421 is about 2306.1702018715. The cubic root of 5318421 is about 174.5531019031.

The spelling of 5318421 in words is "five million, three hundred eighteen thousand, four hundred twenty-one".