247316890 has 16 divisors (see below), whose sum is σ = 445376232. Its totient is φ = 98881024.

The previous prime is 247316887. The next prime is 247316891. The reversal of 247316890 is 98613742.

It can be written as a sum of positive squares in 4 ways, for example, as 197374401 + 49942489 = 14049^2 + 7067^2 .

It is a super-2 number, since 2×247316890² = 122331288158544200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247316891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24702 + ... + 33238.

Almost surely, 2^247316890 is an apocalyptic number.

247316890 is a deficient number, since it is larger than the sum of its proper divisors (198059342).

247316890 is a wasteful number, since it uses less digits than its factorization.

247316890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11441.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 247316890 is about 15726.3120279359. The cubic root of 247316890 is about 627.6987428862.

The spelling of 247316890 in words is "two hundred forty-seven million, three hundred sixteen thousand, eight hundred ninety".