247464087 has 32 divisors (see below), whose sum is σ = 381463488. Its totient is φ = 141336576.

The previous prime is 247464083. The next prime is 247464089. The reversal of 247464087 is 780464742.

It is not a de Polignac number, because 247464087 - 2² = 247464083 is a prime.

It is a super-2 number, since 2×247464087² = 122476948709487138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247464083) 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, 45843 + ... + 50955.

It is an arithmetic number, because the mean of its divisors is an integer number (11920734).

Almost surely, 2^247464087 is an apocalyptic number.

247464087 is a deficient number, since it is larger than the sum of its proper divisors (133999401).

247464087 is a wasteful number, since it uses less digits than its factorization.

247464087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219.

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 247464087 is about 15730.9912910789. The cubic root of 247464087 is about 627.8232485322.

The spelling of 247464087 in words is "two hundred forty-seven million, four hundred sixty-four thousand, eighty-seven".