68892213 has 16 divisors (see below), whose sum is σ = 99947456. Its totient is φ = 41955840.

The previous prime is 68892203. The next prime is 68892247. The reversal of 68892213 is 31229886.

It is a happy number.

It is not a de Polignac number, because 68892213 - 2⁵ = 68892181 is a prime.

It is a super-2 number, since 2×68892213² = 9492274024074738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68892203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5323 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (6246716).

Almost surely, 2^68892213 is an apocalyptic number.

It is an amenable number.

68892213 is a deficient number, since it is larger than the sum of its proper divisors (31055243).

68892213 is a wasteful number, since it uses less digits than its factorization.

68892213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18324.

The product of its digits is 41472, while the sum is 39.

The square root of 68892213 is about 8300.1333121824. The cubic root of 68892213 is about 409.9429089652.

The spelling of 68892213 in words is "sixty-eight million, eight hundred ninety-two thousand, two hundred thirteen".