985678066 has 4 divisors (see below), whose sum is σ = 1478517102. Its totient is φ = 492839032.

The previous prime is 985678027. The next prime is 985678079. The reversal of 985678066 is 660876589.

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., 985646025 + 32041 = 31395^2 + 179^2 .

It is a super-2 number, since 2×985678066² = 1943122499587000712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 985677998 and 985678016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246419515 + ... + 246419518.

Almost surely, 2^985678066 is an apocalyptic number.

985678066 is a deficient number, since it is larger than the sum of its proper divisors (492839036).

985678066 is a wasteful number, since it uses less digits than its factorization.

985678066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492839035.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The square root of 985678066 is about 31395.5102841155. The cubic root of 985678066 is about 995.2030480458.

The spelling of 985678066 in words is "nine hundred eighty-five million, six hundred seventy-eight thousand, sixty-six".