247648072 has 16 divisors (see below), whose sum is σ = 530674560. Its totient is φ = 106134864.

The previous prime is 247648069. The next prime is 247648097. The reversal of 247648072 is 270846742.

247648072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247648072² = 122659135130634368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2211088 + ... + 2211199.

It is an arithmetic number, because the mean of its divisors is an integer number (33167160).

Almost surely, 2^247648072 is an apocalyptic number.

It is an amenable number.

247648072 is an abundant number, since it is smaller than the sum of its proper divisors (283026488).

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

247648072 is a wasteful number, since it uses less digits than its factorization.

247648072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422300 (or 4422296 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 247648072 is about 15736.8380559755. The cubic root of 247648072 is about 627.9788016699.

The spelling of 247648072 in words is "two hundred forty-seven million, six hundred forty-eight thousand, seventy-two".