247376085 has 32 divisors (see below), whose sum is σ = 439119360. Its totient is φ = 117902400.

The previous prime is 247376057. The next prime is 247376089. The reversal of 247376085 is 580673742.

It is not a de Polignac number, because 247376085 - 2⁵ = 247376053 is a prime.

It is a super-2 number, since 2×247376085² = 122389854859854450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247376089) 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 31 ways as a sum of consecutive naturals, for example, 2971 + ... + 22440.

It is an arithmetic number, because the mean of its divisors is an integer number (13722480).

Almost surely, 2^247376085 is an apocalyptic number.

It is an amenable number.

247376085 is a deficient number, since it is larger than the sum of its proper divisors (191743275).

247376085 is a wasteful number, since it uses less digits than its factorization.

247376085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25489.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 247376085 is about 15728.1939522629. The cubic root of 247376085 is about 627.7488185375.

The spelling of 247376085 in words is "two hundred forty-seven million, three hundred seventy-six thousand, eighty-five".