2006376731 has 4 divisors (see below), whose sum is σ = 2010228264. Its totient is φ = 2002525200.

The previous prime is 2006376727. The next prime is 2006376739. The reversal of 2006376731 is 1376736002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2006376731 - 2² = 2006376727 is a prime.

It is a super-2 number, since 2×2006376731² = 8051095173396492722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2006376691 and 2006376700.

It is not an unprimeable number, because it can be changed into a prime (2006376739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924985 + ... + 1926026.

It is an arithmetic number, because the mean of its divisors is an integer number (502557066).

Almost surely, 2^2006376731 is an apocalyptic number.

2006376731 is a deficient number, since it is larger than the sum of its proper divisors (3851533).

2006376731 is an equidigital number, since it uses as much as digits as its factorization.

2006376731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851532.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 2006376731 is about 44792.5968325124. The cubic root of 2006376731 is about 1261.2586589078.

The spelling of 2006376731 in words is "two billion, six million, three hundred seventy-six thousand, seven hundred thirty-one".