247464361 has 3 divisors (see below), whose sum is σ = 247480093. Its totient is φ = 247448630.

The previous prime is 247464331. The next prime is 247464377. The reversal of 247464361 is 163464742.

The square root of 247464361 is 15731.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 247464361 - 2¹⁹ = 246940073 is a prime.

It is a super-2 number, since 2×247464361² = 122477219930276642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247464361.

It is not an unprimeable number, because it can be changed into a prime (247464331) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7866 + ... + 23596.

Almost surely, 2^247464361 is an apocalyptic number.

247464361 is the 15731-st square number.

247464361 is the 7866-th centered octagonal number.

It is an amenable number.

247464361 is a deficient number, since it is larger than the sum of its proper divisors (15732).

247464361 is an frugal number, since it uses more digits than its factorization.

247464361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31462 (or 15731 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The cubic root of 247464361 is about 627.8234802473.

The spelling of 247464361 in words is "two hundred forty-seven million, four hundred sixty-four thousand, three hundred sixty-one".