61984538 has 32 divisors (see below), whose sum is σ = 118758528. Its totient is φ = 23558400.

The previous prime is 61984537. The next prime is 61984547. The reversal of 61984538 is 83548916.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61984537) 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, 1406 + ... + 11222.

It is an arithmetic number, because the mean of its divisors is an integer number (3711204).

Almost surely, 2^61984538 is an apocalyptic number.

61984538 is a deficient number, since it is larger than the sum of its proper divisors (56773990).

61984538 is a wasteful number, since it uses less digits than its factorization.

61984538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878.

The product of its digits is 207360, while the sum is 44.

The square root of 61984538 is about 7873.0259748079. The cubic root of 61984538 is about 395.7562566627.

The spelling of 61984538 in words is "sixty-one million, nine hundred eighty-four thousand, five hundred thirty-eight".