47477579 has 2 divisors, whose sum is σ = 47477580. Its totient is φ = 47477578.

The previous prime is 47477569. The next prime is 47477587. The reversal of 47477579 is 97577474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47477579 - 2⁸ = 47477323 is a prime.

It is a super-3 number, since 3×47477579³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (47477519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23738789 + 23738790.

It is an arithmetic number, because the mean of its divisors is an integer number (23738790).

Almost surely, 2^47477579 is an apocalyptic number.

47477579 is a deficient number, since it is larger than the sum of its proper divisors (1).

47477579 is an equidigital number, since it uses as much as digits as its factorization.

47477579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728720, while the sum is 50.

The square root of 47477579 is about 6890.3975937532. The cubic root of 47477579 is about 362.1008311653.

The spelling of 47477579 in words is "forty-seven million, four hundred seventy-seven thousand, five hundred seventy-nine".