695190638 has 4 divisors (see below), whose sum is σ = 1042785960. Its totient is φ = 347595318.

The previous prime is 695190637. The next prime is 695190649. The reversal of 695190638 is 836091596.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 695190592 and 695190601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695190637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173797658 + ... + 173797661.

It is an arithmetic number, because the mean of its divisors is an integer number (260696490).

Almost surely, 2^695190638 is an apocalyptic number.

695190638 is a deficient number, since it is larger than the sum of its proper divisors (347595322).

695190638 is a wasteful number, since it uses less digits than its factorization.

695190638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347595321.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 695190638 is about 26366.4680607775. The cubic root of 695190638 is about 885.8658737052.

The spelling of 695190638 in words is "six hundred ninety-five million, one hundred ninety thousand, six hundred thirty-eight".