61849843 has 4 divisors (see below), whose sum is σ = 67472568. Its totient is φ = 56227120.

The previous prime is 61849841. The next prime is 61849849. The reversal of 61849843 is 34894816.

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 61849843 - 2¹ = 61849841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61849843.

It is not an unprimeable number, because it can be changed into a prime (61849841) 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, 2811346 + ... + 2811367.

It is an arithmetic number, because the mean of its divisors is an integer number (16868142).

Almost surely, 2^61849843 is an apocalyptic number.

61849843 is a deficient number, since it is larger than the sum of its proper divisors (5622725).

61849843 is a wasteful number, since it uses less digits than its factorization.

61849843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622724.

The product of its digits is 165888, while the sum is 43.

The square root of 61849843 is about 7864.4671148146. The cubic root of 61849843 is about 395.4693837869.

The spelling of 61849843 in words is "sixty-one million, eight hundred forty-nine thousand, eight hundred forty-three".