7980403 has 2 divisors, whose sum is σ = 7980404. Its totient is φ = 7980402.

The previous prime is 7980391. The next prime is 7980409. The reversal of 7980403 is 3040897.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7980403 - 2⁹ = 7979891 is a prime.

It is an Ulam number.

7980403 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7980409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990201 + 3990202.

It is an arithmetic number, because the mean of its divisors is an integer number (3990202).

Almost surely, 2^7980403 is an apocalyptic number.

7980403 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980403 is an equidigital number, since it uses as much as digits as its factorization.

7980403 is an evil number, because the sum of its binary digits is even.

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

The square root of 7980403 is about 2824.9607076913. The cubic root of 7980403 is about 199.8365581368.

The spelling of 7980403 in words is "seven million, nine hundred eighty thousand, four hundred three".