33440087 has 4 divisors (see below), whose sum is σ = 33462576. Its totient is φ = 33417600.

The previous prime is 33440081. The next prime is 33440101. The reversal of 33440087 is 78004433.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33440087 is a prime.

It is a super-2 number, since 2×33440087² = 2236478837135138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33440081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8843 + ... + 12044.

It is an arithmetic number, because the mean of its divisors is an integer number (8365644).

Almost surely, 2^33440087 is an apocalyptic number.

33440087 is a deficient number, since it is larger than the sum of its proper divisors (22489).

33440087 is a wasteful number, since it uses less digits than its factorization.

33440087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22488.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 33440087 is about 5782.7404403103. The cubic root of 33440087 is about 322.1729938578.

The spelling of 33440087 in words is "thirty-three million, four hundred forty thousand, eighty-seven".