247865492 has 12 divisors (see below), whose sum is σ = 495731040. Its totient is φ = 106228056.

The previous prime is 247865467. The next prime is 247865531. The reversal of 247865492 is 294568742.

247865492 is an admirable number.

It is a super-2 number, since 2×247865492² = 122874604248804128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4426142 + ... + 4426197.

It is an arithmetic number, because the mean of its divisors is an integer number (41310920).

Almost surely, 2^247865492 is an apocalyptic number.

It is an amenable number.

247865492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247865492 is a wasteful number, since it uses less digits than its factorization.

247865492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852350 (or 8852348 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 247865492 is about 15743.7445355290. The cubic root of 247865492 is about 628.1625236925.

The spelling of 247865492 in words is "two hundred forty-seven million, eight hundred sixty-five thousand, four hundred ninety-two".