5721458 has 8 divisors (see below), whose sum is σ = 8814252. Its totient is φ = 2783376.

The previous prime is 5721437. The next prime is 5721461. The reversal of 5721458 is 8541275.

It can be written as a sum of positive squares in 2 ways, for example, as 5139289 + 582169 = 2267^2 + 763^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38585 + ... + 38732.

Almost surely, 2^5721458 is an apocalyptic number.

5721458 is a deficient number, since it is larger than the sum of its proper divisors (3092794).

5721458 is a wasteful number, since it uses less digits than its factorization.

5721458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77356.

The product of its digits is 11200, while the sum is 32.

The square root of 5721458 is about 2391.9569394117. The cubic root of 5721458 is about 178.8554746147.

The spelling of 5721458 in words is "five million, seven hundred twenty-one thousand, four hundred fifty-eight".