36078991 has 8 divisors (see below), whose sum is σ = 39012624. Its totient is φ = 33168000.

The previous prime is 36078989. The next prime is 36079003. The reversal of 36078991 is 19987063.

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 36078991 - 2¹ = 36078989 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 (36078941) 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, 2266 + ... + 8791.

It is an arithmetic number, because the mean of its divisors is an integer number (4876578).

Almost surely, 2^36078991 is an apocalyptic number.

36078991 is a deficient number, since it is larger than the sum of its proper divisors (2933633).

36078991 is a wasteful number, since it uses less digits than its factorization.

36078991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 36078991 is about 6006.5789764224. The cubic root of 36078991 is about 330.4340508176.

The spelling of 36078991 in words is "thirty-six million, seventy-eight thousand, nine hundred ninety-one".