76403 has 2 divisors, whose sum is σ = 76404. Its totient is φ = 76402.

The previous prime is 76387. The next prime is 76421. The reversal of 76403 is 30467.

It is a weak prime.

It is an emirp because it is prime and its reverse (30467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76403 - 2⁴ = 76387 is a prime.

It is an Ulam number.

It is equal to p₇₅₁₇ and since 76403 and 7517 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (76423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38201 + 38202.

It is an arithmetic number, because the mean of its divisors is an integer number (38202).

2⁷⁶⁴⁰³ is an apocalyptic number.

76403 is a deficient number, since it is larger than the sum of its proper divisors (1).

76403 is an equidigital number, since it uses as much as digits as its factorization.

76403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 76403 is about 276.4109259780. The cubic root of 76403 is about 42.4329739346.

It can be divided in two parts, 76 and 403, that multiplied together give a triangular number (30628 = T₂₄₇).

The spelling of 76403 in words is "seventy-six thousand, four hundred three".