61233939 has 36 divisors (see below), whose sum is σ = 96834816. Its totient is φ = 37267776.

The previous prime is 61233899. The next prime is 61233943. The reversal of 61233939 is 93933216.

It is a happy number.

61233939 is a `hidden beast` number, since 612 + 3 + 3 + 9 + 39 = 666.

It is not a de Polignac number, because 61233939 - 2⁷ = 61233811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61233539) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 193009 + ... + 193325.

It is an arithmetic number, because the mean of its divisors is an integer number (2689856).

Almost surely, 2^61233939 is an apocalyptic number.

61233939 is a deficient number, since it is larger than the sum of its proper divisors (35600877).

61233939 is a wasteful number, since it uses less digits than its factorization.

61233939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 460 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 61233939 is about 7825.2117543233. The cubic root of 61233939 is about 394.1523005391.

The spelling of 61233939 in words is "sixty-one million, two hundred thirty-three thousand, nine hundred thirty-nine".