47970449 has 2 divisors, whose sum is σ = 47970450. Its totient is φ = 47970448.

The previous prime is 47970443. The next prime is 47970457. The reversal of 47970449 is 94407974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 801025 = 6868^2 + 895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47970449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47970443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23985224 + 23985225.

It is an arithmetic number, because the mean of its divisors is an integer number (23985225).

Almost surely, 2^47970449 is an apocalyptic number.

It is an amenable number.

47970449 is a deficient number, since it is larger than the sum of its proper divisors (1).

47970449 is an equidigital number, since it uses as much as digits as its factorization.

47970449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 47970449 is about 6926.0702422081. The cubic root of 47970449 is about 363.3495230748.

The spelling of 47970449 in words is "forty-seven million, nine hundred seventy thousand, four hundred forty-nine".