61108783 has 4 divisors (see below), whose sum is σ = 61144128. Its totient is φ = 61073440.

The previous prime is 61108753. The next prime is 61108787. The reversal of 61108783 is 38780116.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61108783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61108787) 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, 14938 + ... + 18583.

It is an arithmetic number, because the mean of its divisors is an integer number (15286032).

Almost surely, 2^61108783 is an apocalyptic number.

61108783 is a deficient number, since it is larger than the sum of its proper divisors (35345).

61108783 is a wasteful number, since it uses less digits than its factorization.

61108783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35344.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 61108783 is about 7817.2106918005. The cubic root of 61108783 is about 393.8835815181.

Adding to 61108783 its reverse (38780116), we get a palindrome (99888899).

The spelling of 61108783 in words is "sixty-one million, one hundred eight thousand, seven hundred eighty-three".