695640650 has 24 divisors (see below), whose sum is σ = 1298002860. Its totient is φ = 277372160.

The previous prime is 695640619. The next prime is 695640667. The reversal of 695640650 is 56046596.

It can be written as a sum of positive squares in 6 ways, for example, as 250304041 + 445336609 = 15821^2 + 21103^2 .

It is a super-3 number, since 3×695640650³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 695640598 and 695640607.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6095 + ... + 37794.

Almost surely, 2^695640650 is an apocalyptic number.

695640650 is a deficient number, since it is larger than the sum of its proper divisors (602362210).

695640650 is a wasteful number, since it uses less digits than its factorization.

695640650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44218 (or 44213 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 695640650 is about 26375.0004739336. Note that the first 3 decimals coincide. The cubic root of 695640650 is about 886.0569792161.

The spelling of 695640650 in words is "six hundred ninety-five million, six hundred forty thousand, six hundred fifty".