76222261 has 4 divisors (see below), whose sum is σ = 76239724. Its totient is φ = 76204800.

The previous prime is 76222247. The next prime is 76222313. The reversal of 76222261 is 16222267.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20421361 + 55800900 = 4519^2 + 7470^2 .

It is a cyclic number.

It is not a de Polignac number, because 76222261 - 2¹⁷ = 76091189 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 (76222061) 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 3 ways as a sum of consecutive naturals, for example, 4231 + ... + 13051.

It is an arithmetic number, because the mean of its divisors is an integer number (19059931).

Almost surely, 2^76222261 is an apocalyptic number.

It is an amenable number.

76222261 is a deficient number, since it is larger than the sum of its proper divisors (17463).

76222261 is an equidigital number, since it uses as much as digits as its factorization.

76222261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17462.

The product of its digits is 4032, while the sum is 28.

The square root of 76222261 is about 8730.5361232859. The cubic root of 76222261 is about 423.9948768961.

The spelling of 76222261 in words is "seventy-six million, two hundred twenty-two thousand, two hundred sixty-one".