61869933 has 8 divisors (see below), whose sum is σ = 91659200. Its totient is φ = 41246604.

The previous prime is 61869901. The next prime is 61869949. The reversal of 61869933 is 33996816.

It is not a de Polignac number, because 61869933 - 2⁵ = 61869901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61869133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145713 + ... + 1145766.

It is an arithmetic number, because the mean of its divisors is an integer number (11457400).

Almost surely, 2^61869933 is an apocalyptic number.

It is an amenable number.

61869933 is a deficient number, since it is larger than the sum of its proper divisors (29789267).

61869933 is a wasteful number, since it uses less digits than its factorization.

61869933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291488 (or 2291482 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 61869933 is about 7865.7442750194. The cubic root of 61869933 is about 395.5121977993.

The spelling of 61869933 in words is "sixty-one million, eight hundred sixty-nine thousand, nine hundred thirty-three".