2006995831 has 16 divisors (see below), whose sum is σ = 2111539456. Its totient is φ = 1905120000.

The previous prime is 2006995817. The next prime is 2006995867. The reversal of 2006995831 is 1385996002.

It is a happy number.

It is a 8-Lehmer number, since φ(2006995831) divides (2006995831-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 2006995831 - 2¹³ = 2006987639 is a prime.

It is a super-2 number, since 2×2006995831² = 8056064531302761122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006995811) 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, 794851 + ... + 797371.

It is an arithmetic number, because the mean of its divisors is an integer number (131971216).

Almost surely, 2^2006995831 is an apocalyptic number.

2006995831 is a deficient number, since it is larger than the sum of its proper divisors (104543625).

2006995831 is a wasteful number, since it uses less digits than its factorization.

2006995831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2006995831 is about 44799.5070396986. The cubic root of 2006995831 is about 1261.3883728216.

The spelling of 2006995831 in words is "two billion, six million, nine hundred ninety-five thousand, eight hundred thirty-one".