75815672 has 8 divisors (see below), whose sum is σ = 142154400. Its totient is φ = 37907832.

The previous prime is 75815671. The next prime is 75815689. The reversal of 75815672 is 27651857.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×75815672³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75815671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4738472 + ... + 4738487.

It is an arithmetic number, because the mean of its divisors is an integer number (17769300).

Almost surely, 2^75815672 is an apocalyptic number.

It is an amenable number.

75815672 is a deficient number, since it is larger than the sum of its proper divisors (66338728).

75815672 is a wasteful number, since it uses less digits than its factorization.

75815672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9476965 (or 9476961 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 75815672 is about 8707.2195332379. The cubic root of 75815672 is about 423.2396334392.

The spelling of 75815672 in words is "seventy-five million, eight hundred fifteen thousand, six hundred seventy-two".