76422109 has 4 divisors (see below), whose sum is σ = 76756060. Its totient is φ = 76088160.

The previous prime is 76422091. The next prime is 76422119. The reversal of 76422109 is 90122467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90122467 = 5953 ⋅15139.

It can be written as a sum of positive squares in 2 ways, for example, as 67404100 + 9018009 = 8210^2 + 3003^2 .

It is a cyclic number.

It is not a de Polignac number, because 76422109 - 2⁷ = 76421981 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 (76422119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166632 + ... + 167089.

It is an arithmetic number, because the mean of its divisors is an integer number (19189015).

Almost surely, 2^76422109 is an apocalyptic number.

It is an amenable number.

76422109 is a deficient number, since it is larger than the sum of its proper divisors (333951).

76422109 is a wasteful number, since it uses less digits than its factorization.

76422109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333950.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 76422109 is about 8741.9739761681. The cubic root of 76422109 is about 424.3651124820.

The spelling of 76422109 in words is "seventy-six million, four hundred twenty-two thousand, one hundred nine".