47916997 has 2 divisors, whose sum is σ = 47916998. Its totient is φ = 47916996.

The previous prime is 47916991. The next prime is 47917013. The reversal of 47916997 is 79961974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32558436 + 15358561 = 5706^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 47916997 - 2³ = 47916989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47916991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23958498 + 23958499.

It is an arithmetic number, because the mean of its divisors is an integer number (23958499).

Almost surely, 2^47916997 is an apocalyptic number.

It is an amenable number.

47916997 is a deficient number, since it is larger than the sum of its proper divisors (1).

47916997 is an equidigital number, since it uses as much as digits as its factorization.

47916997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 47916997 is about 6922.2104128667. The cubic root of 47916997 is about 363.2145165081.

The spelling of 47916997 in words is "forty-seven million, nine hundred sixteen thousand, nine hundred ninety-seven".