36199969 has 8 divisors (see below), whose sum is σ = 39217640. Its totient is φ = 33413328.

The previous prime is 36199967. The next prime is 36199993. The reversal of 36199969 is 96999163.

It can be written as a sum of positive squares in 4 ways, for example, as 13987600 + 22212369 = 3740^2 + 4713^2 .

It is not a de Polignac number, because 36199969 - 2¹ = 36199967 is a prime.

It is a super-2 number, since 2×36199969² = 2620875511201922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (36199963) 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, 6042 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (4902205).

Almost surely, 2^36199969 is an apocalyptic number.

It is an amenable number.

36199969 is a deficient number, since it is larger than the sum of its proper divisors (3017671).

36199969 is an equidigital number, since it uses as much as digits as its factorization.

36199969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16516 (or 16490 counting only the distinct ones).

The product of its digits is 708588, while the sum is 52.

The square root of 36199969 is about 6016.6410064088. The cubic root of 36199969 is about 330.8029696042.

The spelling of 36199969 in words is "thirty-six million, one hundred ninety-nine thousand, nine hundred sixty-nine".