61827065 has 4 divisors (see below), whose sum is σ = 74192484. Its totient is φ = 49461648.

The previous prime is 61827053. The next prime is 61827107. The reversal of 61827065 is 56072816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33396841 + 28430224 = 5779^2 + 5332^2 .

It is a cyclic number.

It is not a de Polignac number, because 61827065 - 2⁶ = 61827001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6182702 + ... + 6182711.

It is an arithmetic number, because the mean of its divisors is an integer number (18548121).

Almost surely, 2^61827065 is an apocalyptic number.

It is an amenable number.

61827065 is a deficient number, since it is larger than the sum of its proper divisors (12365419).

61827065 is a wasteful number, since it uses less digits than its factorization.

61827065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12365418.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 61827065 is about 7863.0188223099. The cubic root of 61827065 is about 395.4208301327.

The spelling of 61827065 in words is "sixty-one million, eight hundred twenty-seven thousand, sixty-five".