75797409 has 8 divisors (see below), whose sum is σ = 102008160. Its totient is φ = 50059136.

The previous prime is 75797383. The next prime is 75797411. The reversal of 75797409 is 90479757.

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 75797409 - 2⁸ = 75797153 is a prime.

It is a super-2 number, since 2×75797409² = 11490494422226562, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75797429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117744 + ... + 118385.

It is an arithmetic number, because the mean of its divisors is an integer number (12751020).

Almost surely, 2^75797409 is an apocalyptic number.

It is an amenable number.

75797409 is a deficient number, since it is larger than the sum of its proper divisors (26210751).

75797409 is a wasteful number, since it uses less digits than its factorization.

75797409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236239.

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 75797409 is about 8706.1707426400. The cubic root of 75797409 is about 423.2056464198.

The spelling of 75797409 in words is "seventy-five million, seven hundred ninety-seven thousand, four hundred nine".