247089346 has 16 divisors (see below), whose sum is σ = 424051776. Its totient is φ = 105777936.

The previous prime is 247089343. The next prime is 247089371. The reversal of 247089346 is 643980742.

It is a super-2 number, since 2×247089346² = 122106289813415432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247089341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3940 + ... + 22576.

It is an arithmetic number, because the mean of its divisors is an integer number (26503236).

Almost surely, 2^247089346 is an apocalyptic number.

247089346 is a deficient number, since it is larger than the sum of its proper divisors (176962430).

247089346 is a wasteful number, since it uses less digits than its factorization.

247089346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 247089346 is about 15719.0758634215. The cubic root of 247089346 is about 627.5061789945.

The spelling of 247089346 in words is "two hundred forty-seven million, eighty-nine thousand, three hundred forty-six".