75727951 has 8 divisors (see below), whose sum is σ = 83289024. Its totient is φ = 68414880.

The previous prime is 75727933. The next prime is 75727999. The reversal of 75727951 is 15972757.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75727951 - 2¹⁹ = 75203663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75727898 and 75727907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75727921) 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 7 ways as a sum of consecutive naturals, for example, 61360 + ... + 62581.

It is an arithmetic number, because the mean of its divisors is an integer number (10411128).

Almost surely, 2^75727951 is an apocalyptic number.

75727951 is a deficient number, since it is larger than the sum of its proper divisors (7561073).

75727951 is a wasteful number, since it uses less digits than its factorization.

75727951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124001.

The product of its digits is 154350, while the sum is 43.

The square root of 75727951 is about 8702.1808186224. The cubic root of 75727951 is about 423.0763368053.

The spelling of 75727951 in words is "seventy-five million, seven hundred twenty-seven thousand, nine hundred fifty-one".