47656379 has 2 divisors, whose sum is σ = 47656380. Its totient is φ = 47656378.

The previous prime is 47656339. The next prime is 47656397. The reversal of 47656379 is 97365674.

It is a happy number.

Together with next prime (47656397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47656379 is a prime.

It is a super-2 number, since 2×47656379² = 4542260918783282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47656319) 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, 23828189 + 23828190.

It is an arithmetic number, because the mean of its divisors is an integer number (23828190).

Almost surely, 2^47656379 is an apocalyptic number.

47656379 is a deficient number, since it is larger than the sum of its proper divisors (1).

47656379 is an equidigital number, since it uses as much as digits as its factorization.

47656379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 47.

The square root of 47656379 is about 6903.3599790247. The cubic root of 47656379 is about 362.5548175523.

The spelling of 47656379 in words is "forty-seven million, six hundred fifty-six thousand, three hundred seventy-nine".