695990905 has 16 divisors (see below), whose sum is σ = 877719744. Its totient is φ = 529139520.

The previous prime is 695990903. The next prime is 695990909. The reversal of 695990905 is 509099596.

It is not a de Polignac number, because 695990905 - 2¹ = 695990903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (695990903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35791 + ... + 51700.

It is an arithmetic number, because the mean of its divisors is an integer number (54857484).

Almost surely, 2^695990905 is an apocalyptic number.

It is an amenable number.

695990905 is a deficient number, since it is larger than the sum of its proper divisors (181728839).

695990905 is a wasteful number, since it uses less digits than its factorization.

695990905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87576.

The product of its (nonzero) digits is 984150, while the sum is 52.

The square root of 695990905 is about 26381.6395434401. The cubic root of 695990905 is about 886.2056641324.

The spelling of 695990905 in words is "six hundred ninety-five million, nine hundred ninety thousand, nine hundred five".