75978849 has 8 divisors (see below), whose sum is σ = 101345472. Its totient is φ = 50632400.

The previous prime is 75978841. The next prime is 75978857. The reversal of 75978849 is 94887957.

It is an interprime number because it is at equal distance from previous prime (75978841) and next prime (75978857).

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

It is a cyclic number.

It is not a de Polignac number, because 75978849 - 2³ = 75978841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75978841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11524 + ... + 16874.

It is an arithmetic number, because the mean of its divisors is an integer number (12668184).

Almost surely, 2^75978849 is an apocalyptic number.

It is an amenable number.

75978849 is a deficient number, since it is larger than the sum of its proper divisors (25366623).

75978849 is a wasteful number, since it uses less digits than its factorization.

75978849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087.

The product of its digits is 5080320, while the sum is 57.

The square root of 75978849 is about 8716.5847096211. The cubic root of 75978849 is about 423.5430600846.

The spelling of 75978849 in words is "seventy-five million, nine hundred seventy-eight thousand, eight hundred forty-nine".