2170063986 has 64 divisors (see below), whose sum is σ = 4730142720. Its totient is φ = 661348800.

The previous prime is 2170063981. The next prime is 2170063993. The reversal of 2170063986 is 6893600712.

2170063986 = 5306² + 5307² + ... + 5381².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2170063981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533661 + ... + 537711.

It is an arithmetic number, because the mean of its divisors is an integer number (73908480).

Almost surely, 2^2170063986 is an apocalyptic number.

2170063986 is an abundant number, since it is smaller than the sum of its proper divisors (2560078734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2170063986 is a wasteful number, since it uses less digits than its factorization.

2170063986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 2170063986 is about 46583.9455821424. The cubic root of 2170063986 is about 1294.6653152385.

The spelling of 2170063986 in words is "two billion, one hundred seventy million, sixty-three thousand, nine hundred eighty-six".