61932381 has 16 divisors (see below), whose sum is σ = 99340800. Its totient is φ = 33527088.

The previous prime is 61932361. The next prime is 61932433. The reversal of 61932381 is 18323916.

61932381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61932381 - 2⁶ = 61932317 is a prime.

It is a super-2 number, since 2×61932381² = 7671239632658322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61932361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77211 + ... + 78008.

It is an arithmetic number, because the mean of its divisors is an integer number (6208800).

Almost surely, 2^61932381 is an apocalyptic number.

It is an amenable number.

61932381 is a deficient number, since it is larger than the sum of its proper divisors (37408419).

61932381 is a wasteful number, since it uses less digits than its factorization.

61932381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155248.

The product of its digits is 7776, while the sum is 33.

The square root of 61932381 is about 7869.7128918405. The cubic root of 61932381 is about 395.6452222442.

The spelling of 61932381 in words is "sixty-one million, nine hundred thirty-two thousand, three hundred eighty-one".