33891034 has 4 divisors (see below), whose sum is σ = 50836554. Its totient is φ = 16945516.

The previous prime is 33891023. The next prime is 33891037. The reversal of 33891034 is 43019833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43019833 = 1609 ⋅26737.

It can be written as a sum of positive squares in only one way, i.e., 33674809 + 216225 = 5803^2 + 465^2 .

It is a super-2 number, since 2×33891034² = 2297204371178312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33890987 and 33891005.

It is not an unprimeable number, because it can be changed into a prime (33891037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472757 + ... + 8472760.

Almost surely, 2^33891034 is an apocalyptic number.

33891034 is a deficient number, since it is larger than the sum of its proper divisors (16945520).

33891034 is a wasteful number, since it uses less digits than its factorization.

33891034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16945519.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 33891034 is about 5821.6006389996. The cubic root of 33891034 is about 323.6147239235.

The spelling of 33891034 in words is "thirty-three million, eight hundred ninety-one thousand, thirty-four".