36998421 has 16 divisors (see below), whose sum is σ = 51995520. Its totient is φ = 23355200.

The previous prime is 36998417. The next prime is 36998431. The reversal of 36998421 is 12489963.

It is a cyclic number.

It is not a de Polignac number, because 36998421 - 2² = 36998417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36998411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4315 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (3249720).

Almost surely, 2^36998421 is an apocalyptic number.

It is an amenable number.

36998421 is a deficient number, since it is larger than the sum of its proper divisors (14997099).

36998421 is a wasteful number, since it uses less digits than its factorization.

36998421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436.

The product of its digits is 93312, while the sum is 42.

The square root of 36998421 is about 6082.6327359130. The cubic root of 36998421 is about 333.2174449365.

It can be divided in two parts, 369 and 98421, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 36998421 in words is "thirty-six million, nine hundred ninety-eight thousand, four hundred twenty-one".