5620991 has 2 divisors, whose sum is σ = 5620992. Its totient is φ = 5620990.

The previous prime is 5620987. The next prime is 5620997. The reversal of 5620991 is 1990265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5620991 - 2² = 5620987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5620997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810495 + 2810496.

It is an arithmetic number, because the mean of its divisors is an integer number (2810496).

Almost surely, 2^5620991 is an apocalyptic number.

5620991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5620991 is an equidigital number, since it uses as much as digits as its factorization.

5620991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 5620991 is about 2370.8629230725. The cubic root of 5620991 is about 177.8024045600.

The spelling of 5620991 in words is "five million, six hundred twenty thousand, nine hundred ninety-one".