708611121 has 6 divisors (see below), whose sum is σ = 1023549410. Its totient is φ = 472407408.

The previous prime is 708611083. The next prime is 708611171. The reversal of 708611121 is 121116807.

It can be written as a sum of positive squares in only one way, i.e., 497780721 + 210830400 = 22311^2 + 14520^2 .

It is a de Polignac number, because none of the positive numbers 2^k-708611121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (708611171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39367276 + ... + 39367293.

Almost surely, 2^708611121 is an apocalyptic number.

It is an amenable number.

708611121 is a deficient number, since it is larger than the sum of its proper divisors (314938289).

708611121 is a wasteful number, since it uses less digits than its factorization.

708611121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78734575 (or 78734572 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 708611121 is about 26619.7505811005. The cubic root of 708611121 is about 891.5300537709.

Adding to 708611121 its reverse (121116807), we get a palindrome (829727928).

The spelling of 708611121 in words is "seven hundred eight million, six hundred eleven thousand, one hundred twenty-one".