75345761 has 4 divisors (see below), whose sum is σ = 77098032. Its totient is φ = 73593492.

The previous prime is 75345757. The next prime is 75345791. The reversal of 75345761 is 16754357.

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 75345761 - 2² = 75345757 is a prime.

It is a super-3 number, since 3×75345761³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75345731) 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, 876071 + ... + 876156.

It is an arithmetic number, because the mean of its divisors is an integer number (19274508).

Almost surely, 2^75345761 is an apocalyptic number.

It is an amenable number.

75345761 is a deficient number, since it is larger than the sum of its proper divisors (1752271).

75345761 is a wasteful number, since it uses less digits than its factorization.

75345761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752270.

The product of its digits is 88200, while the sum is 38.

The square root of 75345761 is about 8680.1936038317. The cubic root of 75345761 is about 422.3633973612.

The spelling of 75345761 in words is "seventy-five million, three hundred forty-five thousand, seven hundred sixty-one".