47149967 has 2 divisors, whose sum is σ = 47149968. Its totient is φ = 47149966.

The previous prime is 47149937. The next prime is 47149987. The reversal of 47149967 is 76994174.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47149967 - 2⁶ = 47149903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47149937) 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, 23574983 + 23574984.

It is an arithmetic number, because the mean of its divisors is an integer number (23574984).

Almost surely, 2^47149967 is an apocalyptic number.

47149967 is a deficient number, since it is larger than the sum of its proper divisors (1).

47149967 is an equidigital number, since it uses as much as digits as its factorization.

47149967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 47149967 is about 6866.5833570998. The cubic root of 47149967 is about 361.2660336989.

The spelling of 47149967 in words is "forty-seven million, one hundred forty-nine thousand, nine hundred sixty-seven".