247933349 has 4 divisors (see below), whose sum is σ = 251425440. Its totient is φ = 244441260.

The previous prime is 247933333. The next prime is 247933369. The reversal of 247933349 is 943339742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 247933349 - 2⁴ = 247933333 is a prime.

It is a super-2 number, since 2×247933349² = 122941891092711602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247933369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745939 + ... + 1746080.

It is an arithmetic number, because the mean of its divisors is an integer number (62856360).

Almost surely, 2^247933349 is an apocalyptic number.

It is an amenable number.

247933349 is a deficient number, since it is larger than the sum of its proper divisors (3492091).

247933349 is an equidigital number, since it uses as much as digits as its factorization.

247933349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492090.

The product of its digits is 489888, while the sum is 44.

The square root of 247933349 is about 15745.8994344559. The cubic root of 247933349 is about 628.2198415209.

The spelling of 247933349 in words is "two hundred forty-seven million, nine hundred thirty-three thousand, three hundred forty-nine".