75771413 has 4 divisors (see below), whose sum is σ = 76838688. Its totient is φ = 74704140.

The previous prime is 75771401. The next prime is 75771427. The reversal of 75771413 is 31417757.

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 75771413 - 2²⁴ = 58994197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75771433) 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, 533531 + ... + 533672.

It is an arithmetic number, because the mean of its divisors is an integer number (19209672).

Almost surely, 2^75771413 is an apocalyptic number.

It is an amenable number.

75771413 is a deficient number, since it is larger than the sum of its proper divisors (1067275).

75771413 is a wasteful number, since it uses less digits than its factorization.

75771413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067274.

The product of its digits is 20580, while the sum is 35.

The square root of 75771413 is about 8704.6776505509. The cubic root of 75771413 is about 423.1572590492.

The spelling of 75771413 in words is "seventy-five million, seven hundred seventy-one thousand, four hundred thirteen".