76881493 has 8 divisors (see below), whose sum is σ = 83727000. Its totient is φ = 70169088.

The previous prime is 76881491. The next prime is 76881509. The reversal of 76881493 is 39418867.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8868484 + 68013009 = 2978^2 + 8247^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 76881493 - 2¹ = 76881491 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 (76881491) 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, 32068 + ... + 34381.

It is an arithmetic number, because the mean of its divisors is an integer number (10465875).

Almost surely, 2^76881493 is an apocalyptic number.

It is an amenable number.

76881493 is a deficient number, since it is larger than the sum of its proper divisors (6845507).

76881493 is a wasteful number, since it uses less digits than its factorization.

76881493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66551.

The product of its digits is 290304, while the sum is 46.

The square root of 76881493 is about 8768.2092242373. The cubic root of 76881493 is about 425.2137204204.

The spelling of 76881493 in words is "seventy-six million, eight hundred eighty-one thousand, four hundred ninety-three".