705520547 has 4 divisors (see below), whose sum is σ = 705620016. Its totient is φ = 705421080.

The previous prime is 705520499. The next prime is 705520637. The reversal of 705520547 is 745025507.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745025507 = 71 ⋅10493317.

It is a cyclic number.

It is not a de Polignac number, because 705520547 - 2¹² = 705516451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705523547) 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, 38204 + ... + 53577.

It is an arithmetic number, because the mean of its divisors is an integer number (176405004).

Almost surely, 2^705520547 is an apocalyptic number.

705520547 is a deficient number, since it is larger than the sum of its proper divisors (99469).

705520547 is an equidigital number, since it uses as much as digits as its factorization.

705520547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99468.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 705520547 is about 26561.6367530316. The cubic root of 705520547 is about 890.2320427658.

The spelling of 705520547 in words is "seven hundred five million, five hundred twenty thousand, five hundred forty-seven".