47386919 has 2 divisors, whose sum is σ = 47386920. Its totient is φ = 47386918.

The previous prime is 47386883. The next prime is 47386921. The reversal of 47386919 is 91968374.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47386919 - 2¹⁶ = 47321383 is a prime.

It is a super-2 number, since 2×47386919² = 4491040184625122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 47386921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47386979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23693459 + 23693460.

It is an arithmetic number, because the mean of its divisors is an integer number (23693460).

Almost surely, 2^47386919 is an apocalyptic number.

47386919 is a deficient number, since it is larger than the sum of its proper divisors (1).

47386919 is an equidigital number, since it uses as much as digits as its factorization.

47386919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 47386919 is about 6883.8157296662. The cubic root of 47386919 is about 361.8702031534.

The spelling of 47386919 in words is "forty-seven million, three hundred eighty-six thousand, nine hundred nineteen".