47869117 has 2 divisors, whose sum is σ = 47869118. Its totient is φ = 47869116.

The previous prime is 47869067. The next prime is 47869121. The reversal of 47869117 is 71196874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43112356 + 4756761 = 6566^2 + 2181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47869117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47849117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23934558 + 23934559.

It is an arithmetic number, because the mean of its divisors is an integer number (23934559).

Almost surely, 2^47869117 is an apocalyptic number.

It is an amenable number.

47869117 is a deficient number, since it is larger than the sum of its proper divisors (1).

47869117 is an equidigital number, since it uses as much as digits as its factorization.

47869117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 47869117 is about 6918.7511156277. The cubic root of 47869117 is about 363.0934981653.

The spelling of 47869117 in words is "forty-seven million, eight hundred sixty-nine thousand, one hundred seventeen".