76838403 has 4 divisors (see below), whose sum is σ = 102451208. Its totient is φ = 51225600.

The previous prime is 76838383. The next prime is 76838449. The reversal of 76838403 is 30483867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30483867 = 3 ⋅10161289.

It is not a de Polignac number, because 76838403 - 2⁶ = 76838339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76838303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12806398 + ... + 12806403.

It is an arithmetic number, because the mean of its divisors is an integer number (25612802).

Almost surely, 2^76838403 is an apocalyptic number.

76838403 is a deficient number, since it is larger than the sum of its proper divisors (25612805).

76838403 is a wasteful number, since it uses less digits than its factorization.

76838403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612804.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 76838403 is about 8765.7517076404. The cubic root of 76838403 is about 425.1342653065.

The spelling of 76838403 in words is "seventy-six million, eight hundred thirty-eight thousand, four hundred three".