5990781 has 16 divisors (see below), whose sum is σ = 8473088. Its totient is φ = 3758400.

The previous prime is 5990779. The next prime is 5990819. The reversal of 5990781 is 1870995.

It is a happy number.

It is not a de Polignac number, because 5990781 - 2¹ = 5990779 is a prime.

It is a super-2 number, since 2×5990781² = 71778913979922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5990711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2571 + ... + 4311.

It is an arithmetic number, because the mean of its divisors is an integer number (529568).

Almost surely, 2^5990781 is an apocalyptic number.

It is an amenable number.

5990781 is a deficient number, since it is larger than the sum of its proper divisors (2482307).

5990781 is a wasteful number, since it uses less digits than its factorization.

5990781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 5990781 is about 2447.6071988781. The cubic root of 5990781 is about 181.6189447170.

The spelling of 5990781 in words is "five million, nine hundred ninety thousand, seven hundred eighty-one".