6982087771 has 4 divisors (see below), whose sum is σ = 6982849192. Its totient is φ = 6981326352.

The previous prime is 6982087769. The next prime is 6982087793. The reversal of 6982087771 is 1777802896.

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 6982087771 - 2¹ = 6982087769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6982087751) 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, 366786 + ... + 385351.

It is an arithmetic number, because the mean of its divisors is an integer number (1745712298).

Almost surely, 2^6982087771 is an apocalyptic number.

6982087771 is a deficient number, since it is larger than the sum of its proper divisors (761421).

6982087771 is an equidigital number, since it uses as much as digits as its factorization.

6982087771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761420.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The square root of 6982087771 is about 83558.8880431041. Note that the first 3 decimals coincide. The cubic root of 6982087771 is about 1911.2981289774.

The spelling of 6982087771 in words is "six billion, nine hundred eighty-two million, eighty-seven thousand, seven hundred seventy-one".