36783021 has 16 divisors (see below), whose sum is σ = 54239040. Its totient is φ = 21985920.

The previous prime is 36783013. The next prime is 36783119. The reversal of 36783021 is 12038763.

It is not a de Polignac number, because 36783021 - 2³ = 36783013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36783021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36783521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5226 + ... + 10043.

It is an arithmetic number, because the mean of its divisors is an integer number (3389940).

Almost surely, 2^36783021 is an apocalyptic number.

It is an amenable number.

36783021 is a deficient number, since it is larger than the sum of its proper divisors (17456019).

36783021 is a wasteful number, since it uses less digits than its factorization.

36783021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15356.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 36783021 is about 6064.9007411499. The cubic root of 36783021 is about 332.5695364017.

The spelling of 36783021 in words is "thirty-six million, seven hundred eighty-three thousand, twenty-one".