8252687986 has 4 divisors (see below), whose sum is σ = 12379031982. Its totient is φ = 4126343992.

The previous prime is 8252687951. The next prime is 8252688001. The reversal of 8252687986 is 6897862528.

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., 7392732361 + 859955625 = 85981^2 + 29325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063171995 + ... + 2063171998.

Almost surely, 2^8252687986 is an apocalyptic number.

8252687986 is a deficient number, since it is larger than the sum of its proper divisors (4126343996).

8252687986 is a wasteful number, since it uses less digits than its factorization.

8252687986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126343995.

The product of its digits is 23224320, while the sum is 61.

The square root of 8252687986 is about 90844.3062937904. The cubic root of 8252687986 is about 2020.8394369182.

The spelling of 8252687986 in words is "eight billion, two hundred fifty-two million, six hundred eighty-seven thousand, nine hundred eighty-six".