35873561 has 4 divisors (see below), whose sum is σ = 36221952. Its totient is φ = 35525172.

The previous prime is 35873543. The next prime is 35873597. The reversal of 35873561 is 16537853.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16537853 = 37 ⋅446969.

It is a cyclic number.

It is not a de Polignac number, because 35873561 - 2¹⁴ = 35857177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35873521) 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 in 3 ways as a sum of consecutive naturals, for example, 174041 + ... + 174246.

It is an arithmetic number, because the mean of its divisors is an integer number (9055488).

Almost surely, 2^35873561 is an apocalyptic number.

It is an amenable number.

35873561 is a deficient number, since it is larger than the sum of its proper divisors (348391).

35873561 is a wasteful number, since it uses less digits than its factorization.

35873561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348390.

The product of its digits is 75600, while the sum is 38.

The square root of 35873561 is about 5989.4541487518. The cubic root of 35873561 is about 329.8057044202.

The spelling of 35873561 in words is "thirty-five million, eight hundred seventy-three thousand, five hundred sixty-one".