536909991 has 8 divisors (see below), whose sum is σ = 724942080. Its totient is φ = 353408952.

The previous prime is 536909969. The next prime is 536910007. The reversal of 536909991 is 199909635.

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

It is not a de Polignac number, because 536909991 - 2⁵ = 536909959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536909921) 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, 1132485 + ... + 1132958.

It is an arithmetic number, because the mean of its divisors is an integer number (90617760).

Almost surely, 2^536909991 is an apocalyptic number.

536909991 is a deficient number, since it is larger than the sum of its proper divisors (188032089).

536909991 is a wasteful number, since it uses less digits than its factorization.

536909991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265525.

The product of its (nonzero) digits is 590490, while the sum is 51.

The square root of 536909991 is about 23171.3182836023. The cubic root of 536909991 is about 812.7690582213.

The spelling of 536909991 in words is "five hundred thirty-six million, nine hundred nine thousand, nine hundred ninety-one".