70747 has 4 divisors (see below), whose sum is σ = 71280. Its totient is φ = 70216.

The previous prime is 70729. The next prime is 70753. The reversal of 70747 is 74707.

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 a cyclic number.

It is not a de Polignac number, because 70747 - 2⁷ = 70619 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (70717) 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, 129 + ... + 397.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2⁷⁰⁷⁴⁷ is an apocalyptic number.

70747 is a deficient number, since it is larger than the sum of its proper divisors (533).

70747 is a wasteful number, since it uses less digits than its factorization.

70747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 70747 is about 265.9830821688. The cubic root of 70747 is about 41.3589345964.

The spelling of 70747 in words is "seventy thousand, seven hundred forty-seven", and thus it is an iban number.