36391487 has 8 divisors (see below), whose sum is σ = 39745920. Its totient is φ = 33044760.

The previous prime is 36391463. The next prime is 36391499. The reversal of 36391487 is 78419363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36391487 - 2⁶ = 36391423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36391417) 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, 13064 + ... + 15602.

It is an arithmetic number, because the mean of its divisors is an integer number (4968240).

Almost surely, 2^36391487 is an apocalyptic number.

36391487 is a deficient number, since it is larger than the sum of its proper divisors (3354433).

36391487 is a wasteful number, since it uses less digits than its factorization.

36391487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853.

The product of its digits is 108864, while the sum is 41.

The square root of 36391487 is about 6032.5357023394. The cubic root of 36391487 is about 331.3853211444.

The spelling of 36391487 in words is "thirty-six million, three hundred ninety-one thousand, four hundred eighty-seven".