47402347 has 2 divisors, whose sum is σ = 47402348. Its totient is φ = 47402346.

The previous prime is 47402339. The next prime is 47402353. The reversal of 47402347 is 74320474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47402347 - 2³ = 47402339 is a prime.

It is a super-2 number, since 2×47402347² = 4493965002216818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47402357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23701173 + 23701174.

It is an arithmetic number, because the mean of its divisors is an integer number (23701174).

Almost surely, 2^47402347 is an apocalyptic number.

47402347 is a deficient number, since it is larger than the sum of its proper divisors (1).

47402347 is an equidigital number, since it uses as much as digits as its factorization.

47402347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 47402347 is about 6884.9362379037. The cubic root of 47402347 is about 361.9094708658.

The spelling of 47402347 in words is "forty-seven million, four hundred two thousand, three hundred forty-seven".