75347887 has 8 divisors (see below), whose sum is σ = 80461440. Its totient is φ = 70402080.

The previous prime is 75347849. The next prime is 75347903. The reversal of 75347887 is 78874357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75347887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75347887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75347837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41008 + ... + 42805.

It is an arithmetic number, because the mean of its divisors is an integer number (10057680).

Almost surely, 2^75347887 is an apocalyptic number.

75347887 is a deficient number, since it is larger than the sum of its proper divisors (5113553).

75347887 is a wasteful number, since it uses less digits than its factorization.

75347887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83873.

The product of its digits is 1317120, while the sum is 49.

The square root of 75347887 is about 8680.3160656741. The cubic root of 75347887 is about 422.3673698746.

The spelling of 75347887 in words is "seventy-five million, three hundred forty-seven thousand, eight hundred eighty-seven".