47054309 has 2 divisors, whose sum is σ = 47054310. Its totient is φ = 47054308.

The previous prime is 47054303. The next prime is 47054339. The reversal of 47054309 is 90345074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45941284 + 1113025 = 6778^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 47054309 - 2⁸ = 47054053 is a prime.

It is a Chen prime.

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

It is equal to p_2834744 and since 47054309 and 2834744 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 (47054303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23527154 + 23527155.

It is an arithmetic number, because the mean of its divisors is an integer number (23527155).

Almost surely, 2^47054309 is an apocalyptic number.

It is an amenable number.

47054309 is a deficient number, since it is larger than the sum of its proper divisors (1).

47054309 is an equidigital number, since it uses as much as digits as its factorization.

47054309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 47054309 is about 6859.6143477604. The cubic root of 47054309 is about 361.0215557400.

The spelling of 47054309 in words is "forty-seven million, fifty-four thousand, three hundred nine".