247499383 has 2 divisors, whose sum is σ = 247499384. Its totient is φ = 247499382.

The previous prime is 247499359. The next prime is 247499423. The reversal of 247499383 is 383994742.

It is a happy number.

247499383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247499383 is a prime.

It is a super-2 number, since 2×247499383² = 122511889170761378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247499323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123749691 + 123749692.

It is an arithmetic number, because the mean of its divisors is an integer number (123749692).

Almost surely, 2^247499383 is an apocalyptic number.

247499383 is a deficient number, since it is larger than the sum of its proper divisors (1).

247499383 is an equidigital number, since it uses as much as digits as its factorization.

247499383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 247499383 is about 15732.1131129928. The cubic root of 247499383 is about 627.8530960900.

The spelling of 247499383 in words is "two hundred forty-seven million, four hundred ninety-nine thousand, three hundred eighty-three".