247497264 has 60 divisors (see below), whose sum is σ = 791601616. Its totient is φ = 70713216.

The previous prime is 247497259. The next prime is 247497269. The reversal of 247497264 is 462794742.

It is an interprime number because it is at equal distance from previous prime (247497259) and next prime (247497269).

It is a super-2 number, since 2×247497264² = 122509791374971392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (247497269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121759 + ... + 123774.

Almost surely, 2^247497264 is an apocalyptic number.

247497264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

247497264 is an abundant number, since it is smaller than the sum of its proper divisors (544104352).

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

247497264 is a wasteful number, since it uses less digits than its factorization.

247497264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245554 (or 245545 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 247497264 is about 15732.0457665238. The cubic root of 247497264 is about 627.8513042680.

The spelling of 247497264 in words is "two hundred forty-seven million, four hundred ninety-seven thousand, two hundred sixty-four".