75727761 has 12 divisors (see below), whose sum is σ = 104336496. Its totient is φ = 48854760.

The previous prime is 75727759. The next prime is 75727777. The reversal of 75727761 is 16772757.

It is a happy number.

It is not a de Polignac number, because 75727761 - 2¹ = 75727759 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75722761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10251 + ... + 16016.

It is an arithmetic number, because the mean of its divisors is an integer number (8694708).

Almost surely, 2^75727761 is an apocalyptic number.

It is an amenable number.

75727761 is a deficient number, since it is larger than the sum of its proper divisors (28608735).

75727761 is a wasteful number, since it uses less digits than its factorization.

75727761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26332 (or 26301 counting only the distinct ones).

The product of its digits is 144060, while the sum is 42.

The square root of 75727761 is about 8702.1699018118. The cubic root of 75727761 is about 423.0759829748.

The spelling of 75727761 in words is "seventy-five million, seven hundred twenty-seven thousand, seven hundred sixty-one".