47505379 has 2 divisors, whose sum is σ = 47505380. Its totient is φ = 47505378.

The previous prime is 47505343. The next prime is 47505401. The reversal of 47505379 is 97350574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47505379 - 2¹⁵ = 47472611 is a prime.

It is a super-2 number, since 2×47505379² = 4513522067867282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47505179) 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, 23752689 + 23752690.

It is an arithmetic number, because the mean of its divisors is an integer number (23752690).

Almost surely, 2^47505379 is an apocalyptic number.

47505379 is a deficient number, since it is larger than the sum of its proper divisors (1).

47505379 is an equidigital number, since it uses as much as digits as its factorization.

47505379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 47505379 is about 6892.4145986729. The cubic root of 47505379 is about 362.1714921608.

The spelling of 47505379 in words is "forty-seven million, five hundred five thousand, three hundred seventy-nine".