75921769 has 8 divisors (see below), whose sum is σ = 94655808. Its totient is φ = 59159760.

The previous prime is 75921763. The next prime is 75921823. The reversal of 75921769 is 96712957.

It is a happy number.

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

It is not a de Polignac number, because 75921769 - 2⁵ = 75921737 is a prime.

It is a super-2 number, since 2×75921769² = 11528230016178722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75921763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492922 + ... + 493075.

It is an arithmetic number, because the mean of its divisors is an integer number (11831976).

Almost surely, 2^75921769 is an apocalyptic number.

It is an amenable number.

75921769 is a deficient number, since it is larger than the sum of its proper divisors (18734039).

75921769 is a wasteful number, since it uses less digits than its factorization.

75921769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986015.

The product of its digits is 238140, while the sum is 46.

The square root of 75921769 is about 8713.3098762755. The cubic root of 75921769 is about 423.4369696185.

The spelling of 75921769 in words is "seventy-five million, nine hundred twenty-one thousand, seven hundred sixty-nine".