247082864 has 20 divisors (see below), whose sum is σ = 547112304. Its totient is φ = 105892608.

The previous prime is 247082861. The next prime is 247082887. The reversal of 247082864 is 468280742.

It is a super-2 number, since 2×247082864² = 122099883364884992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247082861) 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, 1102937 + ... + 1103160.

Almost surely, 2^247082864 is an apocalyptic number.

It is an amenable number.

247082864 is an abundant number, since it is smaller than the sum of its proper divisors (300029440).

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

247082864 is a wasteful number, since it uses less digits than its factorization.

247082864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206112 (or 2206106 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 247082864 is about 15718.8696794649. The cubic root of 247082864 is about 627.5006917343.

It can be divided in two parts, 24708 and 2864, that added together give a palindrome (27572).

The spelling of 247082864 in words is "two hundred forty-seven million, eighty-two thousand, eight hundred sixty-four".