247668485 has 8 divisors (see below), whose sum is σ = 310124160. Its totient is φ = 189520144.

The previous prime is 247668481. The next prime is 247668503. The reversal of 247668485 is 584866742.

It is a happy number.

247668485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247668485 - 2² = 247668481 is a prime.

It is a super-2 number, since 2×247668485² = 122679356924390450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247668481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076705 + ... + 1076934.

It is an arithmetic number, because the mean of its divisors is an integer number (38765520).

Almost surely, 2^247668485 is an apocalyptic number.

It is an amenable number.

247668485 is a deficient number, since it is larger than the sum of its proper divisors (62455675).

247668485 is a wasteful number, since it uses less digits than its factorization.

247668485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153667.

The product of its digits is 2580480, while the sum is 50.

The square root of 247668485 is about 15737.4866163565. The cubic root of 247668485 is about 627.9960554271.

The spelling of 247668485 in words is "two hundred forty-seven million, six hundred sixty-eight thousand, four hundred eighty-five".