247080660 has 48 divisors (see below), whose sum is σ = 692701632. Its totient is φ = 65804800.

The previous prime is 247080629. The next prime is 247080679. The reversal of 247080660 is 66080742.

It is a super-2 number, since 2×247080660² = 122097705092071200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56140 + ... + 60380.

It is an arithmetic number, because the mean of its divisors is an integer number (14431284).

Almost surely, 2^247080660 is an apocalyptic number.

247080660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247080660 is an abundant number, since it is smaller than the sum of its proper divisors (445620972).

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

247080660 is a wasteful number, since it uses less digits than its factorization.

247080660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 247080660 is about 15718.7995724864. The cubic root of 247080660 is about 627.4988259424.

The spelling of 247080660 in words is "two hundred forty-seven million, eighty thousand, six hundred sixty".