36421633 has 4 divisors (see below), whose sum is σ = 38564100. Its totient is φ = 34279168.

The previous prime is 36421601. The next prime is 36421639. The reversal of 36421633 is 33612463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32353344 + 4068289 = 5688^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 36421633 - 2⁵ = 36421601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36421639) 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, 1071208 + ... + 1071241.

It is an arithmetic number, because the mean of its divisors is an integer number (9641025).

It is a Proth number, since it is equal to 2223 ⋅ 2¹⁴ + 1 and 2223 < 2¹⁴.

Almost surely, 2^36421633 is an apocalyptic number.

It is an amenable number.

36421633 is a deficient number, since it is larger than the sum of its proper divisors (2142467).

36421633 is a wasteful number, since it uses less digits than its factorization.

36421633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142466.

The product of its digits is 7776, while the sum is 28.

The square root of 36421633 is about 6035.0338027222. The cubic root of 36421633 is about 331.4768002740.

The spelling of 36421633 in words is "thirty-six million, four hundred twenty-one thousand, six hundred thirty-three".