6995986 has 4 divisors (see below), whose sum is σ = 10493982. Its totient is φ = 3497992.

The previous prime is 6995983. The next prime is 6995999. The reversal of 6995986 is 6895996.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 670761 = 2515^2 + 819^2 .

It is a super-2 number, since 2×6995986² = 97887640224392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6995983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748995 + ... + 1748998.

Almost surely, 2^6995986 is an apocalyptic number.

6995986 is a deficient number, since it is larger than the sum of its proper divisors (3497996).

6995986 is a wasteful number, since it uses less digits than its factorization.

6995986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497995.

The product of its digits is 1049760, while the sum is 52.

The square root of 6995986 is about 2644.9926275890. The cubic root of 6995986 is about 191.2565469728.

The spelling of 6995986 in words is "six million, nine hundred ninety-five thousand, nine hundred eighty-six".