75450939 has 16 divisors (see below), whose sum is σ = 103977984. Its totient is φ = 48636000.

The previous prime is 75450937. The next prime is 75450979. The reversal of 75450939 is 93905457.

It is not a de Polignac number, because 75450939 - 2¹ = 75450937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75450939.

It is not an unprimeable number, because it can be changed into a prime (75450937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10134 + ... + 15924.

It is an arithmetic number, because the mean of its divisors is an integer number (6498624).

Almost surely, 2^75450939 is an apocalyptic number.

75450939 is a deficient number, since it is larger than the sum of its proper divisors (28527045).

75450939 is a wasteful number, since it uses less digits than its factorization.

75450939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 75450939 is about 8686.2499964024. The cubic root of 75450939 is about 422.5598370021.

The spelling of 75450939 in words is "seventy-five million, four hundred fifty thousand, nine hundred thirty-nine".