61877243 has 4 divisors (see below), whose sum is σ = 65133960. Its totient is φ = 58620528.

The previous prime is 61877237. The next prime is 61877251. The reversal of 61877243 is 34277816.

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 61877243 - 2¹⁰ = 61876219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61877197 and 61877206.

It is not an unprimeable number, because it can be changed into a prime (61877443) 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, 1628330 + ... + 1628367.

It is an arithmetic number, because the mean of its divisors is an integer number (16283490).

Almost surely, 2^61877243 is an apocalyptic number.

61877243 is a deficient number, since it is larger than the sum of its proper divisors (3256717).

61877243 is a wasteful number, since it uses less digits than its factorization.

61877243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256716.

The product of its digits is 56448, while the sum is 38.

The square root of 61877243 is about 7866.2089344232. The cubic root of 61877243 is about 395.5277739183.

The spelling of 61877243 in words is "sixty-one million, eight hundred seventy-seven thousand, two hundred forty-three".