695874089 has 2 divisors, whose sum is σ = 695874090. Its totient is φ = 695874088.

The previous prime is 695874061. The next prime is 695874097. The reversal of 695874089 is 980478596.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663577600 + 32296489 = 25760^2 + 5683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-695874089 is a prime.

It is not a weakly prime, because it can be changed into another prime (695874029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347937044 + 347937045.

It is an arithmetic number, because the mean of its divisors is an integer number (347937045).

Almost surely, 2^695874089 is an apocalyptic number.

It is an amenable number.

695874089 is a deficient number, since it is larger than the sum of its proper divisors (1).

695874089 is an equidigital number, since it uses as much as digits as its factorization.

695874089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 695874089 is about 26379.4254865416. The cubic root of 695874089 is about 886.1560807291.

The spelling of 695874089 in words is "six hundred ninety-five million, eight hundred seventy-four thousand, eighty-nine".