706660634 has 4 divisors (see below), whose sum is σ = 1059990954. Its totient is φ = 353330316.

The previous prime is 706660627. The next prime is 706660637. The reversal of 706660634 is 436066607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436066607 = 443 ⋅984349.

It can be written as a sum of positive squares in only one way, i.e., 694164409 + 12496225 = 26347^2 + 3535^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (706660637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176665157 + ... + 176665160.

Almost surely, 2^706660634 is an apocalyptic number.

706660634 is a deficient number, since it is larger than the sum of its proper divisors (353330320).

706660634 is a wasteful number, since it uses less digits than its factorization.

706660634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353330319.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 706660634 is about 26583.0892486182. The cubic root of 706660634 is about 890.7113086424.

The spelling of 706660634 in words is "seven hundred six million, six hundred sixty thousand, six hundred thirty-four".