247980703 has 2 divisors, whose sum is σ = 247980704. Its totient is φ = 247980702.

The previous prime is 247980701. The next prime is 247980743. The reversal of 247980703 is 307089742.

It is an a-pointer prime, because the next prime (247980743) can be obtained adding 247980703 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247980703 - 2¹ = 247980701 is a prime.

It is a super-2 number, since 2×247980703² = 122988858120748418, which contains 22 as substring.

Together with 247980701, it forms a pair of twin primes.

It is equal to p_13574776 and since 247980703 and 13574776 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247980701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123990351 + 123990352.

It is an arithmetic number, because the mean of its divisors is an integer number (123990352).

Almost surely, 2^247980703 is an apocalyptic number.

247980703 is a deficient number, since it is larger than the sum of its proper divisors (1).

247980703 is an equidigital number, since it uses as much as digits as its factorization.

247980703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 247980703 is about 15747.4030557422. The cubic root of 247980703 is about 628.2598345657.

The spelling of 247980703 in words is "two hundred forty-seven million, nine hundred eighty thousand, seven hundred three".