61383773 has 4 divisors (see below), whose sum is σ = 66964128. Its totient is φ = 55803420.

The previous prime is 61383769. The next prime is 61383781. The reversal of 61383773 is 37738316.

It is a happy number.

61383773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61383773 - 2² = 61383769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61383713) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2790161 + ... + 2790182.

It is an arithmetic number, because the mean of its divisors is an integer number (16741032).

Almost surely, 2^61383773 is an apocalyptic number.

It is an amenable number.

61383773 is a deficient number, since it is larger than the sum of its proper divisors (5580355).

61383773 is a wasteful number, since it uses less digits than its factorization.

61383773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580354.

The product of its digits is 63504, while the sum is 38.

The square root of 61383773 is about 7834.7797033484. The cubic root of 61383773 is about 394.4735238820.

The spelling of 61383773 in words is "sixty-one million, three hundred eighty-three thousand, seven hundred seventy-three".