53793691 has 4 divisors (see below), whose sum is σ = 61478512. Its totient is φ = 46108872.

The previous prime is 53793689. The next prime is 53793721. The reversal of 53793691 is 19639735.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53793691 - 2¹ = 53793689 is a prime.

It is a super-2 number, since 2×53793691² = 5787522382806962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53793601) 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, 3842400 + ... + 3842413.

It is an arithmetic number, because the mean of its divisors is an integer number (15369628).

Almost surely, 2^53793691 is an apocalyptic number.

53793691 is a deficient number, since it is larger than the sum of its proper divisors (7684821).

53793691 is an equidigital number, since it uses as much as digits as its factorization.

53793691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684820.

The product of its digits is 153090, while the sum is 43.

The square root of 53793691 is about 7334.4182455052. The cubic root of 53793691 is about 377.4943431458.

The spelling of 53793691 in words is "fifty-three million, seven hundred ninety-three thousand, six hundred ninety-one".