36898561 has 4 divisors (see below), whose sum is σ = 42169792. Its totient is φ = 31627332.

The previous prime is 36898559. The next prime is 36898567. The reversal of 36898561 is 16589863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36898561 - 2¹ = 36898559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36898567) 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, 2635605 + ... + 2635618.

It is an arithmetic number, because the mean of its divisors is an integer number (10542448).

Almost surely, 2^36898561 is an apocalyptic number.

It is an amenable number.

36898561 is a deficient number, since it is larger than the sum of its proper divisors (5271231).

36898561 is an equidigital number, since it uses as much as digits as its factorization.

36898561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271230.

The product of its digits is 311040, while the sum is 46.

The square root of 36898561 is about 6074.4185729994. The cubic root of 36898561 is about 332.9173864026.

The spelling of 36898561 in words is "thirty-six million, eight hundred ninety-eight thousand, five hundred sixty-one".