35138889 has 6 divisors (see below), whose sum is σ = 50756186. Its totient is φ = 23425920.

The previous prime is 35138861. The next prime is 35138893. The reversal of 35138889 is 98883153.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 10188864 = 4995^2 + 3192^2 .

It is not a de Polignac number, because 35138889 - 2⁹ = 35138377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35138849) 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, 1952152 + ... + 1952169.

Almost surely, 2^35138889 is an apocalyptic number.

It is an amenable number.

35138889 is a deficient number, since it is larger than the sum of its proper divisors (15617297).

35138889 is a wasteful number, since it uses less digits than its factorization.

35138889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904327 (or 3904324 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 35138889 is about 5927.8064239649. The cubic root of 35138889 is about 327.5387410224.

The spelling of 35138889 in words is "thirty-five million, one hundred thirty-eight thousand, eight hundred eighty-nine".