36661705 has 4 divisors (see below), whose sum is σ = 43994052. Its totient is φ = 29329360.

The previous prime is 36661699. The next prime is 36661711. The reversal of 36661705 is 50716663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50716663 = 4759 ⋅10657.

It is an interprime number because it is at equal distance from previous prime (36661699) and next prime (36661711).

It can be written as a sum of positive squares in 2 ways, for example, as 11128896 + 25532809 = 3336^2 + 5053^2 .

It is not a de Polignac number, because 36661705 - 2⁷ = 36661577 is a prime.

It is a super-2 number, since 2×36661705² = 2688161227014050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666166 + ... + 3666175.

It is an arithmetic number, because the mean of its divisors is an integer number (10998513).

Almost surely, 2^36661705 is an apocalyptic number.

It is an amenable number.

36661705 is a deficient number, since it is larger than the sum of its proper divisors (7332347).

36661705 is an equidigital number, since it uses as much as digits as its factorization.

36661705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332346.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 36661705 is about 6054.8909981931. The cubic root of 36661705 is about 332.2035120605.

The spelling of 36661705 in words is "thirty-six million, six hundred sixty-one thousand, seven hundred five".