47120449 has 2 divisors, whose sum is σ = 47120450. Its totient is φ = 47120448.

The previous prime is 47120441. The next prime is 47120459. The reversal of 47120449 is 94402174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40870449 + 6250000 = 6393^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 47120449 - 2³ = 47120441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47120449.

It is not a weakly prime, because it can be changed into another prime (47120441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23560224 + 23560225.

It is an arithmetic number, because the mean of its divisors is an integer number (23560225).

Almost surely, 2^47120449 is an apocalyptic number.

It is an amenable number.

47120449 is a deficient number, since it is larger than the sum of its proper divisors (1).

47120449 is an equidigital number, since it uses as much as digits as its factorization.

47120449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 47120449 is about 6864.4336255805. The cubic root of 47120449 is about 361.1906283657.

The spelling of 47120449 in words is "forty-seven million, one hundred twenty thousand, four hundred forty-nine".