870485386 has 4 divisors (see below), whose sum is σ = 1305728082. Its totient is φ = 435242692.

The previous prime is 870485381. The next prime is 870485387. The reversal of 870485386 is 683584078.

870485386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 667964025 + 202521361 = 25845^2 + 14231^2 .

It is not an unprimeable number, because it can be changed into a prime (870485381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217621345 + ... + 217621348.

Almost surely, 2^870485386 is an apocalyptic number.

870485386 is a deficient number, since it is larger than the sum of its proper divisors (435242696).

870485386 is a wasteful number, since it uses less digits than its factorization.

870485386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435242695.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 870485386 is about 29503.9893234796. The cubic root of 870485386 is about 954.8177739535.

The spelling of 870485386 in words is "eight hundred seventy million, four hundred eighty-five thousand, three hundred eighty-six".