33487949 has 4 divisors (see below), whose sum is σ = 36532320. Its totient is φ = 30443580.

The previous prime is 33487913. The next prime is 33487969. The reversal of 33487949 is 94978433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33487949 is a prime.

It is a super-2 number, since 2×33487949² = 2242885456453202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33487969) 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, 1522169 + ... + 1522190.

It is an arithmetic number, because the mean of its divisors is an integer number (9133080).

Almost surely, 2^33487949 is an apocalyptic number.

It is an amenable number.

33487949 is a deficient number, since it is larger than the sum of its proper divisors (3044371).

33487949 is a wasteful number, since it uses less digits than its factorization.

33487949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044370.

The product of its digits is 653184, while the sum is 47.

The square root of 33487949 is about 5786.8773099142. The cubic root of 33487949 is about 322.3266267615.

The spelling of 33487949 in words is "thirty-three million, four hundred eighty-seven thousand, nine hundred forty-nine".