47890907 has 2 divisors, whose sum is σ = 47890908. Its totient is φ = 47890906.

The previous prime is 47890903. The next prime is 47890951. The reversal of 47890907 is 70909874.

It is an a-pointer prime, because the next prime (47890951) can be obtained adding 47890907 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47890907 - 2² = 47890903 is a prime.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (47890901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23945453 + 23945454.

It is an arithmetic number, because the mean of its divisors is an integer number (23945454).

Almost surely, 2^47890907 is an apocalyptic number.

47890907 is a deficient number, since it is larger than the sum of its proper divisors (1).

47890907 is an equidigital number, since it uses as much as digits as its factorization.

47890907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 47890907 is about 6920.3256426269. The cubic root of 47890907 is about 363.1485831390.

The spelling of 47890907 in words is "forty-seven million, eight hundred ninety thousand, nine hundred seven".