36076781 has 4 divisors (see below), whose sum is σ = 38851932. Its totient is φ = 33301632.

The previous prime is 36076759. The next prime is 36076787. The reversal of 36076781 is 18767063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18767063 = 7 ⋅2681009.

It can be written as a sum of positive squares in 2 ways, for example, as 23367556 + 12709225 = 4834^2 + 3565^2 .

It is not a de Polignac number, because 36076781 - 2¹⁰ = 36075757 is a prime.

It is a super-2 number, since 2×36076781² = 2603068254643922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36076787) 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, 1387556 + ... + 1387581.

It is an arithmetic number, because the mean of its divisors is an integer number (9712983).

Almost surely, 2^36076781 is an apocalyptic number.

It is an amenable number.

36076781 is a deficient number, since it is larger than the sum of its proper divisors (2775151).

36076781 is a wasteful number, since it uses less digits than its factorization.

36076781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775150.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 36076781 is about 6006.3950086554. The cubic root of 36076781 is about 330.4273038240.

The spelling of 36076781 in words is "thirty-six million, seventy-six thousand, seven hundred eighty-one".