65631422 has 4 divisors (see below), whose sum is σ = 98447136. Its totient is φ = 32815710.

The previous prime is 65631413. The next prime is 65631431. The reversal of 65631422 is 22413656.

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

It is an interprime number because it is at equal distance from previous prime (65631413) and next prime (65631431).

It is a congruent number.

It is an unprimeable number.

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, 16407854 + ... + 16407857.

It is an arithmetic number, because the mean of its divisors is an integer number (24611784).

Almost surely, 2^65631422 is an apocalyptic number.

65631422 is a deficient number, since it is larger than the sum of its proper divisors (32815714).

65631422 is a wasteful number, since it uses less digits than its factorization.

65631422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32815713.

The product of its digits is 8640, while the sum is 29.

The square root of 65631422 is about 8101.3222377585. The cubic root of 65631422 is about 403.3703184595.

The spelling of 65631422 in words is "sixty-five million, six hundred thirty-one thousand, four hundred twenty-two".