61885743 has 4 divisors (see below), whose sum is σ = 82514328. Its totient is φ = 41257160.

The previous prime is 61885723. The next prime is 61885751. The reversal of 61885743 is 34758816.

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 61885743 - 2⁵ = 61885711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61885695 and 61885704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61885723) 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, 10314288 + ... + 10314293.

It is an arithmetic number, because the mean of its divisors is an integer number (20628582).

Almost surely, 2^61885743 is an apocalyptic number.

61885743 is a deficient number, since it is larger than the sum of its proper divisors (20628585).

61885743 is a wasteful number, since it uses less digits than its factorization.

61885743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20628584.

The product of its digits is 161280, while the sum is 42.

The square root of 61885743 is about 7866.7492015444. The cubic root of 61885743 is about 395.5458841420.

The spelling of 61885743 in words is "sixty-one million, eight hundred eighty-five thousand, seven hundred forty-three".