5785991 has 2 divisors, whose sum is σ = 5785992. Its totient is φ = 5785990.

The previous prime is 5785973. The next prime is 5785999. The reversal of 5785991 is 1995875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5785991 - 2¹⁰ = 5784967 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5785999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2892995 + 2892996.

It is an arithmetic number, because the mean of its divisors is an integer number (2892996).

Almost surely, 2^5785991 is an apocalyptic number.

5785991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5785991 is an equidigital number, since it uses as much as digits as its factorization.

5785991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 5785991 is about 2405.4086970825. The cubic root of 5785991 is about 179.5254061488.

It can be divided in two parts, 5785 and 991, that added together give a palindrome (6776).

The spelling of 5785991 in words is "five million, seven hundred eighty-five thousand, nine hundred ninety-one".