660527047 has 2 divisors, whose sum is σ = 660527048. Its totient is φ = 660527046.

The previous prime is 660527011. The next prime is 660527053. The reversal of 660527047 is 740725066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660527047 - 2²⁷ = 526309319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660526997 and 660527015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660527347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330263523 + 330263524.

It is an arithmetic number, because the mean of its divisors is an integer number (330263524).

Almost surely, 2^660527047 is an apocalyptic number.

660527047 is a deficient number, since it is larger than the sum of its proper divisors (1).

660527047 is an equidigital number, since it uses as much as digits as its factorization.

660527047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 660527047 is about 25700.7207486483. The cubic root of 660527047 is about 870.8904640668.

The spelling of 660527047 in words is "six hundred sixty million, five hundred twenty-seven thousand, forty-seven".