36766421 has 4 divisors (see below), whose sum is σ = 36972000. Its totient is φ = 36560844.

The previous prime is 36766409. The next prime is 36766423. The reversal of 36766421 is 12466763.

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: 12466763 = 17 ⋅733339.

It is a cyclic number.

It is not a de Polignac number, because 36766421 - 2⁶ = 36766357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36766423) 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, 102521 + ... + 102878.

It is an arithmetic number, because the mean of its divisors is an integer number (9243000).

Almost surely, 2^36766421 is an apocalyptic number.

It is an amenable number.

36766421 is a deficient number, since it is larger than the sum of its proper divisors (205579).

36766421 is a wasteful number, since it uses less digits than its factorization.

36766421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205578.

The product of its digits is 36288, while the sum is 35.

The square root of 36766421 is about 6063.5320564833. The cubic root of 36766421 is about 332.5194998645.

The spelling of 36766421 in words is "thirty-six million, seven hundred sixty-six thousand, four hundred twenty-one".