61822379 has 2 divisors, whose sum is σ = 61822380. Its totient is φ = 61822378.

The previous prime is 61822373. The next prime is 61822391. The reversal of 61822379 is 97322816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61822379 - 2²⁴ = 45045163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61822373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30911189 + 30911190.

It is an arithmetic number, because the mean of its divisors is an integer number (30911190).

Almost surely, 2^61822379 is an apocalyptic number.

61822379 is a deficient number, since it is larger than the sum of its proper divisors (1).

61822379 is an equidigital number, since it uses as much as digits as its factorization.

61822379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 61822379 is about 7862.7208395059. The cubic root of 61822379 is about 395.4108399618.

The spelling of 61822379 in words is "sixty-one million, eight hundred twenty-two thousand, three hundred seventy-nine".