247937349 has 32 divisors (see below), whose sum is σ = 375533568. Its totient is φ = 145345200.

The previous prime is 247937329. The next prime is 247937353. The reversal of 247937349 is 943739742.

It is not a de Polignac number, because 247937349 - 2⁵ = 247937317 is a prime.

It is a super-2 number, since 2×247937349² = 122945858058295602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247937298 and 247937307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247937329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122782 + ... + 124784.

It is an arithmetic number, because the mean of its divisors is an integer number (11735424).

Almost surely, 2^247937349 is an apocalyptic number.

It is an amenable number.

247937349 is a deficient number, since it is larger than the sum of its proper divisors (127596219).

247937349 is a wasteful number, since it uses less digits than its factorization.

247937349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070 (or 2048 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 48.

The square root of 247937349 is about 15746.0264511400. The cubic root of 247937349 is about 628.2232199367.

The spelling of 247937349 in words is "two hundred forty-seven million, nine hundred thirty-seven thousand, three hundred forty-nine".