247427372 has 6 divisors (see below), whose sum is σ = 432997908. Its totient is φ = 123713684.

The previous prime is 247427359. The next prime is 247427381. The reversal of 247427372 is 273724742.

It is a super-2 number, since 2×247427372² = 122440608829652768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30928418 + ... + 30928425.

It is an arithmetic number, because the mean of its divisors is an integer number (72166318).

Almost surely, 2^247427372 is an apocalyptic number.

It is an amenable number.

247427372 is a deficient number, since it is larger than the sum of its proper divisors (185570536).

247427372 is a wasteful number, since it uses less digits than its factorization.

247427372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61856847 (or 61856845 counting only the distinct ones).

The product of its digits is 131712, while the sum is 38.

The square root of 247427372 is about 15729.8242838247. The cubic root of 247427372 is about 627.7921980056.

The spelling of 247427372 in words is "two hundred forty-seven million, four hundred twenty-seven thousand, three hundred seventy-two".