85668802 has 4 divisors (see below), whose sum is σ = 128503206. Its totient is φ = 42834400.

The previous prime is 85668787. The next prime is 85668809. The reversal of 85668802 is 20886658.

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., 84842521 + 826281 = 9211^2 + 909^2 .

It is a super-2 number, since 2×85668802² = 14678287272230408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85668809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21417199 + ... + 21417202.

Almost surely, 2^85668802 is an apocalyptic number.

85668802 is a deficient number, since it is larger than the sum of its proper divisors (42834404).

85668802 is a wasteful number, since it uses less digits than its factorization.

85668802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42834403.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 85668802 is about 9255.7442704517. The cubic root of 85668802 is about 440.8331356575.

The spelling of 85668802 in words is "eighty-five million, six hundred sixty-eight thousand, eight hundred two".