5721626 has 8 divisors (see below), whose sum is σ = 8635584. Its totient is φ = 2843100.

The previous prime is 5721619. The next prime is 5721631. The reversal of 5721626 is 6261275.

5721626 = 685² + 686² + ... + 696².

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

It is a super-3 number, since 3×5721626³ (a number of 21 digits) contains 333 as substring.

It is a cake number, because a cake can be divided into 5721626 parts by 325 planar cuts.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8450 + ... + 9101.

It is an arithmetic number, because the mean of its divisors is an integer number (1079448).

Almost surely, 2^5721626 is an apocalyptic number.

5721626 is a deficient number, since it is larger than the sum of its proper divisors (2913958).

5721626 is a wasteful number, since it uses less digits than its factorization.

5721626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17716.

The product of its digits is 5040, while the sum is 29.

The square root of 5721626 is about 2391.9920568430. The cubic root of 5721626 is about 178.8572251839.

The spelling of 5721626 in words is "five million, seven hundred twenty-one thousand, six hundred twenty-six".