75116399 has 4 divisors (see below), whose sum is σ = 76863336. Its totient is φ = 73369464.

The previous prime is 75116359. The next prime is 75116429. The reversal of 75116399 is 99361157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99361157 = 7 ⋅14194451.

It is a cyclic number.

It is not a de Polignac number, because 75116399 - 2⁸ = 75116143 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 (75116339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873404 + ... + 873489.

It is an arithmetic number, because the mean of its divisors is an integer number (19215834).

Almost surely, 2^75116399 is an apocalyptic number.

75116399 is a deficient number, since it is larger than the sum of its proper divisors (1746937).

75116399 is a wasteful number, since it uses less digits than its factorization.

75116399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746936.

The product of its digits is 51030, while the sum is 41.

The square root of 75116399 is about 8666.9717318104. The cubic root of 75116399 is about 421.9343859263.

The spelling of 75116399 in words is "seventy-five million, one hundred sixteen thousand, three hundred ninety-nine".