663693622 has 16 divisors (see below), whose sum is σ = 1003652352. Its totient is φ = 329149800.

The previous prime is 663693607. The next prime is 663693629. The reversal of 663693622 is 226396366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663693629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272703 + ... + 275125.

It is an arithmetic number, because the mean of its divisors is an integer number (62728272).

Almost surely, 2^663693622 is an apocalyptic number.

663693622 is a deficient number, since it is larger than the sum of its proper divisors (339958730).

663693622 is a wasteful number, since it uses less digits than its factorization.

663693622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its digits is 419904, while the sum is 43.

The square root of 663693622 is about 25762.2518813865. The cubic root of 663693622 is about 872.2799326754.

The spelling of 663693622 in words is "six hundred sixty-three million, six hundred ninety-three thousand, six hundred twenty-two".