75987965 has 8 divisors (see below), whose sum is σ = 93409848. Its totient is φ = 59307520.

The previous prime is 75987959. The next prime is 75987971. The reversal of 75987965 is 56978957.

It is an interprime number because it is at equal distance from previous prime (75987959) and next prime (75987971).

It can be written as a sum of positive squares in 4 ways, for example, as 8797156 + 67190809 = 2966^2 + 8197^2 .

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

It is not a de Polignac number, because 75987965 - 2²² = 71793661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75987965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185132 + ... + 185541.

It is an arithmetic number, because the mean of its divisors is an integer number (11676231).

Almost surely, 2^75987965 is an apocalyptic number.

It is an amenable number.

75987965 is a deficient number, since it is larger than the sum of its proper divisors (17421883).

75987965 is a wasteful number, since it uses less digits than its factorization.

75987965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370719.

The product of its digits is 4762800, while the sum is 56.

The square root of 75987965 is about 8717.1076051635. The cubic root of 75987965 is about 423.5599984132.

The spelling of 75987965 in words is "seventy-five million, nine hundred eighty-seven thousand, nine hundred sixty-five".