247474365 has 16 divisors (see below), whose sum is σ = 413175168. Its totient is φ = 126247616.

The previous prime is 247474361. The next prime is 247474369. The reversal of 247474365 is 563474742.

It is an interprime number because it is at equal distance from previous prime (247474361) and next prime (247474369).

It is a cyclic number.

It is not a de Polignac number, because 247474365 - 2² = 247474361 is a prime.

It is a super-2 number, since 2×247474365² = 122487122664306450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247474361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358314 + ... + 359003.

It is an arithmetic number, because the mean of its divisors is an integer number (25823448).

Almost surely, 2^247474365 is an apocalyptic number.

It is an amenable number.

247474365 is a deficient number, since it is larger than the sum of its proper divisors (165700803).

247474365 is a wasteful number, since it uses less digits than its factorization.

247474365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717348.

The product of its digits is 564480, while the sum is 42.

The square root of 247474365 is about 15731.3179676720. The cubic root of 247474365 is about 627.8319402688.

The spelling of 247474365 in words is "two hundred forty-seven million, four hundred seventy-four thousand, three hundred sixty-five".