47424109 has 2 divisors, whose sum is σ = 47424110. Its totient is φ = 47424108.

The previous prime is 47424059. The next prime is 47424119. The reversal of 47424109 is 90142474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40921609 + 6502500 = 6397^2 + 2550^2 .

It is a cyclic number.

It is not a de Polignac number, because 47424109 - 2¹³ = 47415917 is a prime.

It is a super-2 number, since 2×47424109² = 4498092228887762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47424119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23712054 + 23712055.

It is an arithmetic number, because the mean of its divisors is an integer number (23712055).

Almost surely, 2^47424109 is an apocalyptic number.

It is an amenable number.

47424109 is a deficient number, since it is larger than the sum of its proper divisors (1).

47424109 is an equidigital number, since it uses as much as digits as its factorization.

47424109 is an evil number, because the sum of its binary digits is even.

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

The square root of 47424109 is about 6886.5164633507. The cubic root of 47424109 is about 361.9648455428.

The spelling of 47424109 in words is "forty-seven million, four hundred twenty-four thousand, one hundred nine".