75638216 has 16 divisors (see below), whose sum is σ = 142449840. Its totient is φ = 37651600.

The previous prime is 75638207. The next prime is 75638239. The reversal of 75638216 is 61283657.

It is a super-2 number, since 2×75638216² = 11442279439325312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75638216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19010 + ... + 22641.

It is an arithmetic number, because the mean of its divisors is an integer number (8903115).

Almost surely, 2^75638216 is an apocalyptic number.

It is an amenable number.

75638216 is a deficient number, since it is larger than the sum of its proper divisors (66811624).

75638216 is a wasteful number, since it uses less digits than its factorization.

75638216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41884 (or 41880 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 75638216 is about 8697.0233988417. The cubic root of 75638216 is about 422.9091604849.

The spelling of 75638216 in words is "seventy-five million, six hundred thirty-eight thousand, two hundred sixteen".