247080765 has 16 divisors (see below), whose sum is σ = 395659008. Its totient is φ = 131666496.

The previous prime is 247080761. The next prime is 247080767. The reversal of 247080765 is 567080742.

It is not a de Polignac number, because 247080765 - 2² = 247080761 is a prime.

It is a super-2 number, since 2×247080765² = 122097808865970450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247080761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13699 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (24728688).

Almost surely, 2^247080765 is an apocalyptic number.

It is an amenable number.

247080765 is a deficient number, since it is larger than the sum of its proper divisors (148578243).

247080765 is a wasteful number, since it uses less digits than its factorization.

247080765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13748.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 247080765 is about 15718.8029124358. The cubic root of 247080765 is about 627.4989148302.

The spelling of 247080765 in words is "two hundred forty-seven million, eighty thousand, seven hundred sixty-five".