8081213 has 8 divisors (see below), whose sum is σ = 9721920. Its totient is φ = 6562080.

The previous prime is 8081197. The next prime is 8081221. The reversal of 8081213 is 3121808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8081213 - 2⁴ = 8081197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30248 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (1215240).

Almost surely, 2^8081213 is an apocalyptic number.

It is an amenable number.

8081213 is a deficient number, since it is larger than the sum of its proper divisors (1640707).

8081213 is a wasteful number, since it uses less digits than its factorization.

8081213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60787.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8081213 is about 2842.7474386586. The cubic root of 8081213 is about 200.6744977070.

The spelling of 8081213 in words is "eight million, eighty-one thousand, two hundred thirteen".