5621398 has 4 divisors (see below), whose sum is σ = 8432100. Its totient is φ = 2810698.

The previous prime is 5621383. The next prime is 5621417. The reversal of 5621398 is 8931265.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405348 + ... + 1405351.

It is an arithmetic number, because the mean of its divisors is an integer number (2108025).

Almost surely, 2^5621398 is an apocalyptic number.

5621398 is a deficient number, since it is larger than the sum of its proper divisors (2810702).

5621398 is a wasteful number, since it uses less digits than its factorization.

5621398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810701.

The product of its digits is 12960, while the sum is 34.

The square root of 5621398 is about 2370.9487552455. The cubic root of 5621398 is about 177.8066958456.

The spelling of 5621398 in words is "five million, six hundred twenty-one thousand, three hundred ninety-eight".