75884009 has 4 divisors (see below), whose sum is σ = 76020804. Its totient is φ = 75747216.

The previous prime is 75883963. The next prime is 75884021. The reversal of 75884009 is 90048857.

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 19333609 + 56550400 = 4397^2 + 7520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75884009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75884099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67562 + ... + 68675.

It is an arithmetic number, because the mean of its divisors is an integer number (19005201).

Almost surely, 2^75884009 is an apocalyptic number.

It is an amenable number.

75884009 is a deficient number, since it is larger than the sum of its proper divisors (136795).

75884009 is a wasteful number, since it uses less digits than its factorization.

75884009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136794.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 75884009 is about 8711.1428067734. The cubic root of 75884009 is about 423.3667586121.

The spelling of 75884009 in words is "seventy-five million, eight hundred eighty-four thousand, nine".