36774921 has 4 divisors (see below), whose sum is σ = 49033232. Its totient is φ = 24516612.

The previous prime is 36774911. The next prime is 36774923. The reversal of 36774921 is 12947763.

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: 12947763 = 3 ⋅4315921.

It is not a de Polignac number, because 36774921 - 2¹¹ = 36772873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36774921.

It is not an unprimeable number, because it can be changed into a prime (36774923) 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, 6129151 + ... + 6129156.

It is an arithmetic number, because the mean of its divisors is an integer number (12258308).

Almost surely, 2^36774921 is an apocalyptic number.

It is an amenable number.

36774921 is a deficient number, since it is larger than the sum of its proper divisors (12258311).

36774921 is a wasteful number, since it uses less digits than its factorization.

36774921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12258310.

The product of its digits is 63504, while the sum is 39.

The square root of 36774921 is about 6064.2329275845. The cubic root of 36774921 is about 332.5451228641.

The spelling of 36774921 in words is "thirty-six million, seven hundred seventy-four thousand, nine hundred twenty-one".