706643461 has 4 divisors (see below), whose sum is σ = 706708800. Its totient is φ = 706578124.

The previous prime is 706643447. The next prime is 706643477. The reversal of 706643461 is 164346607.

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, 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 706643461 - 2⁵ = 706643429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 706643461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706641461) 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, 12151 + ... + 39508.

It is an arithmetic number, because the mean of its divisors is an integer number (176677200).

Almost surely, 2^706643461 is an apocalyptic number.

It is an amenable number.

706643461 is a deficient number, since it is larger than the sum of its proper divisors (65339).

706643461 is a wasteful number, since it uses less digits than its factorization.

706643461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65338.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 706643461 is about 26582.7662405552. The cubic root of 706643461 is about 890.7040933406.

The spelling of 706643461 in words is "seven hundred six million, six hundred forty-three thousand, four hundred sixty-one".