75863965 has 4 divisors (see below), whose sum is σ = 91036764. Its totient is φ = 60691168.

The previous prime is 75863951. The next prime is 75863989. The reversal of 75863965 is 56936857.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50893956 + 24970009 = 7134^2 + 4997^2 .

It is a cyclic number.

It is not a de Polignac number, because 75863965 - 2⁵ = 75863933 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7586392 + ... + 7586401.

It is an arithmetic number, because the mean of its divisors is an integer number (22759191).

Almost surely, 2^75863965 is an apocalyptic number.

It is an amenable number.

75863965 is a deficient number, since it is larger than the sum of its proper divisors (15172799).

75863965 is a wasteful number, since it uses less digits than its factorization.

75863965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15172798.

The product of its digits is 1360800, while the sum is 49.

The square root of 75863965 is about 8709.9922502836. The cubic root of 75863965 is about 423.3294793016.

The spelling of 75863965 in words is "seventy-five million, eight hundred sixty-three thousand, nine hundred sixty-five".