65247487 has 2 divisors, whose sum is σ = 65247488. Its totient is φ = 65247486.

The previous prime is 65247449. The next prime is 65247499. The reversal of 65247487 is 78474256.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65247487 is a prime.

It is a super-3 number, since 3×65247487³ (a number of 24 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65247437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32623743 + 32623744.

It is an arithmetic number, because the mean of its divisors is an integer number (32623744).

Almost surely, 2^65247487 is an apocalyptic number.

65247487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65247487 is an equidigital number, since it uses as much as digits as its factorization.

65247487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The square root of 65247487 is about 8077.5916584091. The cubic root of 65247487 is about 402.5822256558.

The spelling of 65247487 in words is "sixty-five million, two hundred forty-seven thousand, four hundred eighty-seven".