247430487 has 8 divisors (see below), whose sum is σ = 330424560. Its totient is φ = 164695040.

The previous prime is 247430473. The next prime is 247430501. The reversal of 247430487 is 784034742.

It is an interprime number because it is at equal distance from previous prime (247430473) and next prime (247430501).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247430487 - 2¹⁰ = 247429463 is a prime.

It is a super-2 number, since 2×247430487² = 122443691794114338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247330487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62412 + ... + 66257.

It is an arithmetic number, because the mean of its divisors is an integer number (41303070).

Almost surely, 2^247430487 is an apocalyptic number.

247430487 is a deficient number, since it is larger than the sum of its proper divisors (82994073).

247430487 is a wasteful number, since it uses less digits than its factorization.

247430487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129313.

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 247430487 is about 15729.9232992408. The cubic root of 247430487 is about 627.7948325356.

The spelling of 247430487 in words is "two hundred forty-seven million, four hundred thirty thousand, four hundred eighty-seven".