705736057 has 12 divisors (see below), whose sum is σ = 804424080. Its totient is φ = 617159088.

The previous prime is 705736051. The next prime is 705736069. The reversal of 705736057 is 750637507.

It is not a de Polignac number, because 705736057 - 2¹¹ = 705734009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705736051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106683 + ... + 113104.

It is an arithmetic number, because the mean of its divisors is an integer number (67035340).

Almost surely, 2^705736057 is an apocalyptic number.

It is an amenable number.

705736057 is a deficient number, since it is larger than the sum of its proper divisors (98688023).

705736057 is a wasteful number, since it uses less digits than its factorization.

705736057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219832 (or 219819 counting only the distinct ones).

The product of its (nonzero) digits is 154350, while the sum is 40.

The square root of 705736057 is about 26565.6932339437. The cubic root of 705736057 is about 890.3226776769.

The spelling of 705736057 in words is "seven hundred five million, seven hundred thirty-six thousand, fifty-seven".