705712949 has 4 divisors (see below), whose sum is σ = 715652640. Its totient is φ = 695773260.

The previous prime is 705712939. The next prime is 705712981. The reversal of 705712949 is 949217507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 705712949 - 2²⁴ = 688935733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705712939) 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, 4969739 + ... + 4969880.

It is an arithmetic number, because the mean of its divisors is an integer number (178913160).

Almost surely, 2^705712949 is an apocalyptic number.

It is an amenable number.

705712949 is a deficient number, since it is larger than the sum of its proper divisors (9939691).

705712949 is an equidigital number, since it uses as much as digits as its factorization.

705712949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9939690.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 705712949 is about 26565.2583085503. The cubic root of 705712949 is about 890.3129602569.

The spelling of 705712949 in words is "seven hundred five million, seven hundred twelve thousand, nine hundred forty-nine".