61879443 has 4 divisors (see below), whose sum is σ = 82505928. Its totient is φ = 41252960.

The previous prime is 61879427. The next prime is 61879459. The reversal of 61879443 is 34497816.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61879427) and next prime (61879459).

It is a cyclic number.

It is not a de Polignac number, because 61879443 - 2⁴ = 61879427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61879395 and 61879404.

It is not an unprimeable number, because it can be changed into a prime (61879483) 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, 10313238 + ... + 10313243.

It is an arithmetic number, because the mean of its divisors is an integer number (20626482).

Almost surely, 2^61879443 is an apocalyptic number.

61879443 is a deficient number, since it is larger than the sum of its proper divisors (20626485).

61879443 is a wasteful number, since it uses less digits than its factorization.

61879443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20626484.

The product of its digits is 145152, while the sum is 42.

The square root of 61879443 is about 7866.3487718255. The cubic root of 61879443 is about 395.5324614294.

The spelling of 61879443 in words is "sixty-one million, eight hundred seventy-nine thousand, four hundred forty-three".