75913493 has 4 divisors (see below), whose sum is σ = 79908960. Its totient is φ = 71918028.

The previous prime is 75913477. The next prime is 75913511. The reversal of 75913493 is 39431957.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39431957 = 563 ⋅70039.

It is a cyclic number.

It is not a de Polignac number, because 75913493 - 2⁴ = 75913477 is a prime.

It is a super-2 number, since 2×75913493² = 11525716838922098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75913493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75913093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1997705 + ... + 1997742.

It is an arithmetic number, because the mean of its divisors is an integer number (19977240).

Almost surely, 2^75913493 is an apocalyptic number.

It is an amenable number.

75913493 is a deficient number, since it is larger than the sum of its proper divisors (3995467).

75913493 is a wasteful number, since it uses less digits than its factorization.

75913493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995466.

The product of its digits is 102060, while the sum is 41.

The square root of 75913493 is about 8712.8349576932. The cubic root of 75913493 is about 423.4215832028.

The spelling of 75913493 in words is "seventy-five million, nine hundred thirteen thousand, four hundred ninety-three".