247028063 has 4 divisors (see below), whose sum is σ = 260029560. Its totient is φ = 234026568.

The previous prime is 247028059. The next prime is 247028087. The reversal of 247028063 is 360820742.

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 247028063 - 2² = 247028059 is a prime.

It is a super-2 number, since 2×247028063² = 122045727819063938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247028363) 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, 6500720 + ... + 6500757.

It is an arithmetic number, because the mean of its divisors is an integer number (65007390).

Almost surely, 2^247028063 is an apocalyptic number.

247028063 is a deficient number, since it is larger than the sum of its proper divisors (13001497).

247028063 is a wasteful number, since it uses less digits than its factorization.

247028063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001496.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 247028063 is about 15717.1264231093. The cubic root of 247028063 is about 627.4542967618.

The spelling of 247028063 in words is "two hundred forty-seven million, twenty-eight thousand, sixty-three".