247498873 has 2 divisors, whose sum is σ = 247498874. Its totient is φ = 247498872.

The previous prime is 247498859. The next prime is 247498913. The reversal of 247498873 is 378894742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194965369 + 52533504 = 13963^2 + 7248^2 .

It is a cyclic number.

It is not a de Polignac number, because 247498873 - 2¹³ = 247490681 is a prime.

It is a super-2 number, since 2×247498873² = 122511384272540258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247498873.

It is not a weakly prime, because it can be changed into another prime (247498973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123749436 + 123749437.

It is an arithmetic number, because the mean of its divisors is an integer number (123749437).

Almost surely, 2^247498873 is an apocalyptic number.

It is an amenable number.

247498873 is a deficient number, since it is larger than the sum of its proper divisors (1).

247498873 is an equidigital number, since it uses as much as digits as its factorization.

247498873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The square root of 247498873 is about 15732.0969041002. The cubic root of 247498873 is about 627.8526648360.

The spelling of 247498873 in words is "two hundred forty-seven million, four hundred ninety-eight thousand, eight hundred seventy-three".