247260829 has 2 divisors, whose sum is σ = 247260830. Its totient is φ = 247260828.

The previous prime is 247260809. The next prime is 247260841. The reversal of 247260829 is 928062742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203832729 + 43428100 = 14277^2 + 6590^2 .

It is a cyclic number.

It is not a de Polignac number, because 247260829 - 2¹⁵ = 247228061 is a prime.

It is a super-2 number, since 2×247260829² = 122275835115534482, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 247260791 and 247260800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247260809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123630414 + 123630415.

It is an arithmetic number, because the mean of its divisors is an integer number (123630415).

Almost surely, 2^247260829 is an apocalyptic number.

It is an amenable number.

247260829 is a deficient number, since it is larger than the sum of its proper divisors (1).

247260829 is an equidigital number, since it uses as much as digits as its factorization.

247260829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 247260829 is about 15724.5295319129. The cubic root of 247260829 is about 627.6513110557.

The spelling of 247260829 in words is "two hundred forty-seven million, two hundred sixty thousand, eight hundred twenty-nine".