36901821 has 16 divisors (see below), whose sum is σ = 56010240. Its totient is φ = 21391920.

The previous prime is 36901771. The next prime is 36901829. The reversal of 36901821 is 12810963.

It is not a de Polignac number, because 36901821 - 2⁶ = 36901757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36901829) 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, 23551 + ... + 25068.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 2^36901821 is an apocalyptic number.

It is an amenable number.

36901821 is a deficient number, since it is larger than the sum of its proper divisors (19108419).

36901821 is a wasteful number, since it uses less digits than its factorization.

36901821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48656.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 36901821 is about 6074.6869055121. The cubic root of 36901821 is about 332.9271905674.

The spelling of 36901821 in words is "thirty-six million, nine hundred one thousand, eight hundred twenty-one".