36639065 has 16 divisors (see below), whose sum is σ = 45790608. Its totient is φ = 28118016.

The previous prime is 36639041. The next prime is 36639073. The reversal of 36639065 is 56093663.

36639065 = T₂₅₃ + T₂₅₄ + ... + T₆₁₇.

It can be written as a sum of positive squares in 8 ways, for example, as 9223369 + 27415696 = 3037^2 + 5236^2 .

It is a cyclic number.

It is not a de Polignac number, because 36639065 - 2¹⁴ = 36622681 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12149 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (2861913).

Almost surely, 2^36639065 is an apocalyptic number.

It is an amenable number.

36639065 is a deficient number, since it is larger than the sum of its proper divisors (9151543).

36639065 is a wasteful number, since it uses less digits than its factorization.

36639065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 36639065 is about 6053.0211465020. The cubic root of 36639065 is about 332.1351152031.

The spelling of 36639065 in words is "thirty-six million, six hundred thirty-nine thousand, sixty-five".