65247047 has 4 divisors (see below), whose sum is σ = 66033240. Its totient is φ = 64460856.

The previous prime is 65247043. The next prime is 65247053. The reversal of 65247047 is 74074256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65247047 - 2² = 65247043 is a prime.

It is a super-3 number, since 3×65247047³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65246998 and 65247016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65247043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392972 + ... + 393137.

It is an arithmetic number, because the mean of its divisors is an integer number (16508310).

Almost surely, 2^65247047 is an apocalyptic number.

65247047 is a deficient number, since it is larger than the sum of its proper divisors (786193).

65247047 is an equidigital number, since it uses as much as digits as its factorization.

65247047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786192.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 65247047 is about 8077.5644225224. The cubic root of 65247047 is about 402.5813207087.

The spelling of 65247047 in words is "sixty-five million, two hundred forty-seven thousand, forty-seven".