75684963 has 4 divisors (see below), whose sum is σ = 100913288. Its totient is φ = 50456640.

The previous prime is 75684949. The next prime is 75684967. The reversal of 75684963 is 36948657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36948657 = 3 ⋅12316219.

It is a de Polignac number, because none of the positive numbers 2^k-75684963 is a prime.

It is a super-2 number, since 2×75684963² = 11456427248622738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75684967) 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, 12614158 + ... + 12614163.

It is an arithmetic number, because the mean of its divisors is an integer number (25228322).

Almost surely, 2^75684963 is an apocalyptic number.

75684963 is a deficient number, since it is larger than the sum of its proper divisors (25228325).

75684963 is a wasteful number, since it uses less digits than its factorization.

75684963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25228324.

The product of its digits is 1088640, while the sum is 48.

The square root of 75684963 is about 8699.7105124251. The cubic root of 75684963 is about 422.9962666427.

The spelling of 75684963 in words is "seventy-five million, six hundred eighty-four thousand, nine hundred sixty-three".