75878965 has 8 divisors (see below), whose sum is σ = 91101528. Its totient is φ = 60672000.

The previous prime is 75878963. The next prime is 75878969. The reversal of 75878965 is 56987857.

It can be written as a sum of positive squares in 4 ways, for example, as 1540081 + 74338884 = 1241^2 + 8622^2 .

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

It is not a de Polignac number, because 75878965 - 2¹ = 75878963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75878963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16965 + ... + 20965.

It is an arithmetic number, because the mean of its divisors is an integer number (11387691).

Almost surely, 2^75878965 is an apocalyptic number.

It is an amenable number.

75878965 is a deficient number, since it is larger than the sum of its proper divisors (15222563).

75878965 is a wasteful number, since it uses less digits than its factorization.

75878965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799.

The product of its digits is 4233600, while the sum is 55.

The square root of 75878965 is about 8710.8532877095. The cubic root of 75878965 is about 423.3573780268.

The spelling of 75878965 in words is "seventy-five million, eight hundred seventy-eight thousand, nine hundred sixty-five".