18896213 has 16 divisors (see below), whose sum is σ = 22320000. Its totient is φ = 15988896.

The previous prime is 18896183. The next prime is 18896237. The reversal of 18896213 is 31269881.

It is not a de Polignac number, because 18896213 - 2²² = 14701909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18896243) 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, 30218 + ... + 30836.

It is an arithmetic number, because the mean of its divisors is an integer number (1395000).

Almost surely, 2^18896213 is an apocalyptic number.

It is an amenable number.

18896213 is a deficient number, since it is larger than the sum of its proper divisors (3423787).

18896213 is an frugal number, since it uses more digits than its factorization.

18896213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 715 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 18896213 is about 4346.9774556581. The cubic root of 18896213 is about 266.3534083690.

The spelling of 18896213 in words is "eighteen million, eight hundred ninety-six thousand, two hundred thirteen".