35668881 has 6 divisors (see below), whose sum is σ = 51521730. Its totient is φ = 23779248.

The previous prime is 35668877. The next prime is 35668889. The reversal of 35668881 is 18886653.

35668881 is a `hidden beast` number, since 3 + 566 + 8 + 8 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 5363856 = 5505^2 + 2316^2 .

It is not a de Polignac number, because 35668881 - 2² = 35668877 is a prime.

It is a super-2 number, since 2×35668881² = 2544538143584322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (35668889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1981596 + ... + 1981613.

It is an arithmetic number, because the mean of its divisors is an integer number (8586955).

Almost surely, 2^35668881 is an apocalyptic number.

It is an amenable number.

35668881 is a deficient number, since it is larger than the sum of its proper divisors (15852849).

35668881 is a wasteful number, since it uses less digits than its factorization.

35668881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963215 (or 3963212 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 35668881 is about 5972.3430075641. The cubic root of 35668881 is about 329.1772617929.

The spelling of 35668881 in words is "thirty-five million, six hundred sixty-eight thousand, eight hundred eighty-one".