247000742 has 8 divisors (see below), whose sum is σ = 371050416. Its totient is φ = 123317272.

The previous prime is 247000717. The next prime is 247000753.

247000742 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×247000742² = 122018733097101128, which contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 89858 + ... + 92565.

It is an arithmetic number, because the mean of its divisors is an integer number (46381302).

Almost surely, 2^247000742 is an apocalyptic number.

247000742 is a deficient number, since it is larger than the sum of its proper divisors (124049674).

247000742 is a wasteful number, since it uses less digits than its factorization.

247000742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183102.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 247000742 is about 15716.2572516487. The cubic root of 247000742 is about 627.4311640178.

It can be divided in two parts, 247000 and 742, that added together give a palindrome (247742).

The spelling of 247000742 in words is "two hundred forty-seven million, seven hundred forty-two", and thus it is an aban number.