67990785 has 16 divisors (see below), whose sum is σ = 110839104. Its totient is φ = 35577152.

The previous prime is 67990757. The next prime is 67990801. The reversal of 67990785 is 58709976.

It is a cyclic number.

It is not a de Polignac number, because 67990785 - 2¹¹ = 67988737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41967 + ... + 43556.

It is an arithmetic number, because the mean of its divisors is an integer number (6927444).

Almost surely, 2^67990785 is an apocalyptic number.

It is an amenable number.

67990785 is a deficient number, since it is larger than the sum of its proper divisors (42848319).

67990785 is a wasteful number, since it uses less digits than its factorization.

67990785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85584.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 67990785 is about 8245.6524908584. The cubic root of 67990785 is about 408.1470718825.

The spelling of 67990785 in words is "sixty-seven million, nine hundred ninety thousand, seven hundred eighty-five".