75407233 has 4 divisors (see below), whose sum is σ = 82262448. Its totient is φ = 68552020.

The previous prime is 75407231. The next prime is 75407239. The reversal of 75407233 is 33270457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75407233 - 2¹ = 75407231 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75407195 and 75407204.

It is not an unprimeable number, because it can be changed into a prime (75407231) 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, 3427591 + ... + 3427612.

It is an arithmetic number, because the mean of its divisors is an integer number (20565612).

Almost surely, 2^75407233 is an apocalyptic number.

It is an amenable number.

75407233 is a deficient number, since it is larger than the sum of its proper divisors (6855215).

75407233 is a wasteful number, since it uses less digits than its factorization.

75407233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855214.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 75407233 is about 8683.7338167404. The cubic root of 75407233 is about 422.4782300327.

The spelling of 75407233 in words is "seventy-five million, four hundred seven thousand, two hundred thirty-three".