76106221 has 8 divisors (see below), whose sum is σ = 76889120. Its totient is φ = 75327408.

The previous prime is 76106203. The next prime is 76106231. The reversal of 76106221 is 12260167.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76106221 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 (76106201) 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 7 ways as a sum of consecutive naturals, for example, 47410 + ... + 48988.

It is an arithmetic number, because the mean of its divisors is an integer number (9611140).

Almost surely, 2^76106221 is an apocalyptic number.

It is an amenable number.

76106221 is a deficient number, since it is larger than the sum of its proper divisors (782899).

76106221 is a wasteful number, since it uses less digits than its factorization.

76106221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 76106221 is about 8723.8879520544. The cubic root of 76106221 is about 423.7796057781.

Adding to 76106221 its reverse (12260167), we get a palindrome (88366388).

It can be divided in two parts, 7610 and 6221, that added together give a palindrome (13831).

The spelling of 76106221 in words is "seventy-six million, one hundred six thousand, two hundred twenty-one".