36870538 has 4 divisors (see below), whose sum is σ = 55305810. Its totient is φ = 18435268.

The previous prime is 36870529. The next prime is 36870539. The reversal of 36870538 is 83507863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83507863 = 1979 ⋅42197.

It can be written as a sum of positive squares in only one way, i.e., 27217089 + 9653449 = 5217^2 + 3107^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 36870538.

It is not an unprimeable number, because it can be changed into a prime (36870539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217633 + ... + 9217636.

Almost surely, 2^36870538 is an apocalyptic number.

36870538 is a deficient number, since it is larger than the sum of its proper divisors (18435272).

36870538 is a wasteful number, since it uses less digits than its factorization.

36870538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18435271.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 36870538 is about 6072.1114943650. Note that the first 3 decimals coincide. The cubic root of 36870538 is about 332.8330858552.

The spelling of 36870538 in words is "thirty-six million, eight hundred seventy thousand, five hundred thirty-eight".