76340881 has 2 divisors, whose sum is σ = 76340882. Its totient is φ = 76340880.

The previous prime is 76340837. The next prime is 76340899. The reversal of 76340881 is 18804367.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57988225 + 18352656 = 7615^2 + 4284^2 .

It is a cyclic number.

It is not a de Polignac number, because 76340881 - 2¹³ = 76332689 is a prime.

It is a super-2 number, since 2×76340881² = 11655860223712322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76340881.

It is not a weakly prime, because it can be changed into another prime (76340281) 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 as a sum of consecutive naturals, namely, 38170440 + 38170441.

It is an arithmetic number, because the mean of its divisors is an integer number (38170441).

Almost surely, 2^76340881 is an apocalyptic number.

It is an amenable number.

76340881 is a deficient number, since it is larger than the sum of its proper divisors (1).

76340881 is an equidigital number, since it uses as much as digits as its factorization.

76340881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 76340881 is about 8737.3268795439. The cubic root of 76340881 is about 424.2147085840.

The spelling of 76340881 in words is "seventy-six million, three hundred forty thousand, eight hundred eighty-one".