33487861 has 16 divisors (see below), whose sum is σ = 38730240. Its totient is φ = 28635120.

The previous prime is 33487859. The next prime is 33487877. The reversal of 33487861 is 16878433.

It is a cyclic number.

It is not a de Polignac number, because 33487861 - 2¹ = 33487859 is a prime.

It is a super-2 number, since 2×33487861² = 2242873668710642, 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 (33487061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33576 + ... + 34558.

It is an arithmetic number, because the mean of its divisors is an integer number (2420640).

Almost surely, 2^33487861 is an apocalyptic number.

It is an amenable number.

33487861 is a deficient number, since it is larger than the sum of its proper divisors (5242379).

33487861 is a wasteful number, since it uses less digits than its factorization.

33487861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its digits is 96768, while the sum is 40.

The square root of 33487861 is about 5786.8697064994. The cubic root of 33487861 is about 322.3263444234.

The spelling of 33487861 in words is "thirty-three million, four hundred eighty-seven thousand, eight hundred sixty-one".