61384730 has 32 divisors (see below), whose sum is σ = 122351040. Its totient is φ = 21985920.

The previous prime is 61384717. The next prime is 61384733. The reversal of 61384730 is 3748316.

It is not an unprimeable number, because it can be changed into a prime (61384733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3206 + ... + 11534.

It is an arithmetic number, because the mean of its divisors is an integer number (3823470).

Almost surely, 2^61384730 is an apocalyptic number.

61384730 is a deficient number, since it is larger than the sum of its proper divisors (60966310).

61384730 is a wasteful number, since it uses less digits than its factorization.

61384730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 61384730 is about 7834.8407769399. The cubic root of 61384730 is about 394.4755738765.

The spelling of 61384730 in words is "sixty-one million, three hundred eighty-four thousand, seven hundred thirty".