61606383 has 4 divisors (see below), whose sum is σ = 82141848. Its totient is φ = 41070920.

The previous prime is 61606381. The next prime is 61606387. The reversal of 61606383 is 38360616.

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

It is a cyclic number.

It is not a de Polignac number, because 61606383 - 2¹ = 61606381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61606381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10267728 + ... + 10267733.

It is an arithmetic number, because the mean of its divisors is an integer number (20535462).

Almost surely, 2^61606383 is an apocalyptic number.

61606383 is a deficient number, since it is larger than the sum of its proper divisors (20535465).

61606383 is a wasteful number, since it uses less digits than its factorization.

61606383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535464.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 61606383 is about 7848.9733723590. The cubic root of 61606383 is about 394.9498050836.

Adding to 61606383 its reverse (38360616), we get a palindrome (99966999).

The spelling of 61606383 in words is "sixty-one million, six hundred six thousand, three hundred eighty-three".