47863709 has 2 divisors, whose sum is σ = 47863710. Its totient is φ = 47863708.

The previous prime is 47863649. The next prime is 47863729. The reversal of 47863709 is 90736874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 6775609 = 6410^2 + 2603^2 .

It is a cyclic number.

It is not a de Polignac number, because 47863709 - 2²⁴ = 31086493 is a prime.

It is a super-3 number, since 3×47863709³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47863709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47863729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23931854 + 23931855.

It is an arithmetic number, because the mean of its divisors is an integer number (23931855).

Almost surely, 2^47863709 is an apocalyptic number.

It is an amenable number.

47863709 is a deficient number, since it is larger than the sum of its proper divisors (1).

47863709 is an equidigital number, since it uses as much as digits as its factorization.

47863709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 47863709 is about 6918.3602826103. The cubic root of 47863709 is about 363.0798241885.

The spelling of 47863709 in words is "forty-seven million, eight hundred sixty-three thousand, seven hundred nine".