61384665 has 16 divisors (see below), whose sum is σ = 100870848. Its totient is φ = 31853376.

The previous prime is 61384657. The next prime is 61384699. The reversal of 61384665 is 56648316.

It is not a de Polignac number, because 61384665 - 2³ = 61384657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54747 + ... + 55856.

It is an arithmetic number, because the mean of its divisors is an integer number (6304428).

Almost surely, 2^61384665 is an apocalyptic number.

It is an amenable number.

61384665 is a deficient number, since it is larger than the sum of its proper divisors (39486183).

61384665 is a wasteful number, since it uses less digits than its factorization.

61384665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110648.

The product of its digits is 103680, while the sum is 39.

The square root of 61384665 is about 7834.8366288009. The cubic root of 61384665 is about 394.4754346404.

The spelling of 61384665 in words is "sixty-one million, three hundred eighty-four thousand, six hundred sixty-five".