36309091 has 32 divisors (see below), whose sum is σ = 47108096. Its totient is φ = 27216000.

The previous prime is 36309043. The next prime is 36309101. The reversal of 36309091 is 19090363.

It is not a de Polignac number, because 36309091 - 2¹⁷ = 36178019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (36309001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171976 + ... + 172186.

It is an arithmetic number, because the mean of its divisors is an integer number (1472128).

Almost surely, 2^36309091 is an apocalyptic number.

36309091 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

36309091 is a deficient number, since it is larger than the sum of its proper divisors (10799005).

36309091 is a wasteful number, since it uses less digits than its factorization.

36309091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 36309091 is about 6025.7025316555. The cubic root of 36309091 is about 331.1350294728.

It can be divided in two parts, 3630 and 9091, that added together give a palindrome (12721).

The spelling of 36309091 in words is "thirty-six million, three hundred nine thousand, ninety-one".