61934784 has 56 divisors (see below), whose sum is σ = 164957760. Its totient is φ = 20507904.

The previous prime is 61934783. The next prime is 61934819. The reversal of 61934784 is 48743916.

It is not an unprimeable number, because it can be changed into a prime (61934783) 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, 30307 + ... + 32285.

Almost surely, 2^61934784 is an apocalyptic number.

61934784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61934784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82478880).

61934784 is an abundant number, since it is smaller than the sum of its proper divisors (103022976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61934784 is a wasteful number, since it uses less digits than its factorization.

61934784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2147 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 61934784 is about 7869.8655642902. The cubic root of 61934784 is about 395.6503392399.

The spelling of 61934784 in words is "sixty-one million, nine hundred thirty-four thousand, seven hundred eighty-four".