61849 has 4 divisors (see below), whose sum is σ = 62464. Its totient is φ = 61236.

The previous prime is 61843. The next prime is 61861. The reversal of 61849 is 94816.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61849 - 2¹³ = 53657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61843) 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, 117 + ... + 370.

It is an arithmetic number, because the mean of its divisors is an integer number (15616).

2⁶¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

61849 is a deficient number, since it is larger than the sum of its proper divisors (615).

61849 is a wasteful number, since it uses less digits than its factorization.

61849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 1728, while the sum is 28.

The square root of 61849 is about 248.6945918190. The cubic root of 61849 is about 39.5467587058.

The spelling of 61849 in words is "sixty-one thousand, eight hundred forty-nine".