36387977 has 4 divisors (see below), whose sum is σ = 36748356. Its totient is φ = 36027600.

The previous prime is 36387971. The next prime is 36387979. The reversal of 36387977 is 77978363.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28185481 + 8202496 = 5309^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 36387977 - 2⁴ = 36387961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36387971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180038 + ... + 180239.

It is an arithmetic number, because the mean of its divisors is an integer number (9187089).

Almost surely, 2^36387977 is an apocalyptic number.

It is an amenable number.

36387977 is a deficient number, since it is larger than the sum of its proper divisors (360379).

36387977 is a wasteful number, since it uses less digits than its factorization.

36387977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360378.

The product of its digits is 1333584, while the sum is 50.

The square root of 36387977 is about 6032.2447728851. The cubic root of 36387977 is about 331.3746666391.

The spelling of 36387977 in words is "thirty-six million, three hundred eighty-seven thousand, nine hundred seventy-seven".