36809745 has 32 divisors (see below), whose sum is σ = 70855680. Its totient is φ = 15940800.

The previous prime is 36809701. The next prime is 36809761. The reversal of 36809745 is 54790863.

It is a happy number.

It is not a de Polignac number, because 36809745 - 2⁸ = 36809489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36809697 and 36809706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7231 + ... + 11220.

It is an arithmetic number, because the mean of its divisors is an integer number (2214240).

Almost surely, 2^36809745 is an apocalyptic number.

36809745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36809745 is a deficient number, since it is larger than the sum of its proper divisors (34045935).

36809745 is a wasteful number, since it uses less digits than its factorization.

36809745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18485.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 36809745 is about 6067.1035099131. The cubic root of 36809745 is about 332.6500575820.

The spelling of 36809745 in words is "thirty-six million, eight hundred nine thousand, seven hundred forty-five".