247300072 has 16 divisors (see below), whose sum is σ = 467943300. Its totient is φ = 122515200.

The previous prime is 247300063. The next prime is 247300073. The reversal of 247300072 is 270003742.

It can be written as a sum of positive squares in 2 ways, for example, as 223622116 + 23677956 = 14954^2 + 4866^2 .

It is a super-2 number, since 2×247300072² = 122314651222410368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247300073) 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, 140929 + ... + 142672.

Almost surely, 2^247300072 is an apocalyptic number.

It is an amenable number.

247300072 is a deficient number, since it is larger than the sum of its proper divisors (220643228).

247300072 is a wasteful number, since it uses less digits than its factorization.

247300072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283716 (or 283712 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 247300072 is about 15725.7773098820. Note that the first 3 decimals coincide. The cubic root of 247300072 is about 627.6845143436.

The spelling of 247300072 in words is "two hundred forty-seven million, three hundred thousand, seventy-two".