47305949 has 2 divisors, whose sum is σ = 47305950. Its totient is φ = 47305948.

The previous prime is 47305939. The next prime is 47305957. The reversal of 47305949 is 94950374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 8305924 = 6245^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 47305949 - 2²⁴ = 30528733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_2848982 and since 47305949 and 2848982 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47305919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23652974 + 23652975.

It is an arithmetic number, because the mean of its divisors is an integer number (23652975).

Almost surely, 2^47305949 is an apocalyptic number.

It is an amenable number.

47305949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47305949 is an equidigital number, since it uses as much as digits as its factorization.

47305949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 47305949 is about 6877.9320293239. The cubic root of 47305949 is about 361.6639765161.

The spelling of 47305949 in words is "forty-seven million, three hundred five thousand, nine hundred forty-nine".