61891832 has 32 divisors (see below), whose sum is σ = 123243120. Its totient is φ = 29038080.

The previous prime is 61891813. The next prime is 61891847. The reversal of 61891832 is 23819816.

61891832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77258 + ... + 78054.

Almost surely, 2^61891832 is an apocalyptic number.

It is an amenable number.

61891832 is a deficient number, since it is larger than the sum of its proper divisors (61351288).

61891832 is a wasteful number, since it uses less digits than its factorization.

61891832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1387 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 61891832 is about 7867.1362006768. The cubic root of 61891832 is about 395.5588564346.

The spelling of 61891832 in words is "sixty-one million, eight hundred ninety-one thousand, eight hundred thirty-two".