70247 has 4 divisors (see below), whose sum is σ = 70800. Its totient is φ = 69696.

The previous prime is 70241. The next prime is 70249. The reversal of 70247 is 74207.

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, and also an emirpimes, since its reverse is a distinct semiprime: 74207 = 7 ⋅10601.

It is a cyclic number.

It is not a de Polignac number, because 70247 - 2⁶ = 70183 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 375.

It is an arithmetic number, because the mean of its divisors is an integer number (17700).

2⁷⁰²⁴⁷ is an apocalyptic number.

70247 is a deficient number, since it is larger than the sum of its proper divisors (553).

70247 is a wasteful number, since it uses less digits than its factorization.

70247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 70247 is about 265.0415061835. The cubic root of 70247 is about 41.2612702599.

The spelling of 70247 in words is "seventy thousand, two hundred forty-seven", and thus it is an iban number.