61608365 has 16 divisors (see below), whose sum is σ = 90991488. Its totient is φ = 38995776.

The previous prime is 61608347. The next prime is 61608389. The reversal of 61608365 is 56380616.

61608365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61608365 - 2⁶ = 61608301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67247 + ... + 68156.

It is an arithmetic number, because the mean of its divisors is an integer number (5686968).

Almost surely, 2^61608365 is an apocalyptic number.

61608365 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61608365 is a deficient number, since it is larger than the sum of its proper divisors (29383123).

61608365 is a wasteful number, since it uses less digits than its factorization.

61608365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135428.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 61608365 is about 7849.0996298939. The cubic root of 61608365 is about 394.9540404787.

The spelling of 61608365 in words is "sixty-one million, six hundred eight thousand, three hundred sixty-five".