47430737 has 2 divisors, whose sum is σ = 47430738. Its totient is φ = 47430736.

The previous prime is 47430703. The next prime is 47430739. The reversal of 47430737 is 73703474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 20349121 = 5204^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 47430737 - 2⁶ = 47430673 is a prime.

Together with 47430739, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47430697 and 47430706.

It is not a weakly prime, because it can be changed into another prime (47430739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23715368 + 23715369.

It is an arithmetic number, because the mean of its divisors is an integer number (23715369).

Almost surely, 2^47430737 is an apocalyptic number.

It is an amenable number.

47430737 is a deficient number, since it is larger than the sum of its proper divisors (1).

47430737 is an equidigital number, since it uses as much as digits as its factorization.

47430737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 47430737 is about 6886.9976767820. The cubic root of 47430737 is about 361.9817075095.

The spelling of 47430737 in words is "forty-seven million, four hundred thirty thousand, seven hundred thirty-seven".