36278865 has 36 divisors (see below), whose sum is σ = 73154484. Its totient is φ = 16583616.

The previous prime is 36278863. The next prime is 36278917. The reversal of 36278865 is 56887263.

It can be written as a sum of positive squares in 2 ways, for example, as 24561936 + 11716929 = 4956^2 + 3423^2 .

It is not a de Polignac number, because 36278865 - 2¹ = 36278863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 36278865.

It is not an unprimeable number, because it can be changed into a prime (36278863) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6022 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (2032069).

Almost surely, 2^36278865 is an apocalyptic number.

36278865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36278865 is an abundant number, since it is smaller than the sum of its proper divisors (36875619).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36278865 is a wasteful number, since it uses less digits than its factorization.

36278865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478 (or 16468 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 36278865 is about 6023.1939201723. The cubic root of 36278865 is about 331.0431180005.

The spelling of 36278865 in words is "thirty-six million, two hundred seventy-eight thousand, eight hundred sixty-five".