47430949 has 2 divisors, whose sum is σ = 47430950. Its totient is φ = 47430948.

The previous prime is 47430941. The next prime is 47430967. The reversal of 47430949 is 94903474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39125025 + 8305924 = 6255^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 47430949 - 2³ = 47430941 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47430941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23715474 + 23715475.

It is an arithmetic number, because the mean of its divisors is an integer number (23715475).

Almost surely, 2^47430949 is an apocalyptic number.

It is an amenable number.

47430949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47430949 is an equidigital number, since it uses as much as digits as its factorization.

47430949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 47430949 is about 6887.0130680869. The cubic root of 47430949 is about 361.9822468223.

The spelling of 47430949 in words is "forty-seven million, four hundred thirty thousand, nine hundred forty-nine".