75364243 has 4 divisors (see below), whose sum is σ = 77963040. Its totient is φ = 72765448.

The previous prime is 75364189. The next prime is 75364253. The reversal of 75364243 is 34246357.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75364243 - 2²¹ = 73267091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75364199 and 75364208.

It is not an unprimeable number, because it can be changed into a prime (75364253) 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, 1299355 + ... + 1299412.

It is an arithmetic number, because the mean of its divisors is an integer number (19490760).

Almost surely, 2^75364243 is an apocalyptic number.

75364243 is a deficient number, since it is larger than the sum of its proper divisors (2598797).

75364243 is a wasteful number, since it uses less digits than its factorization.

75364243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598796.

The product of its digits is 60480, while the sum is 34.

The square root of 75364243 is about 8681.2581461445. The cubic root of 75364243 is about 422.3979291961.

The spelling of 75364243 in words is "seventy-five million, three hundred sixty-four thousand, two hundred forty-three".