7478449403 has 2 divisors, whose sum is σ = 7478449404. Its totient is φ = 7478449402.

The previous prime is 7478449387. The next prime is 7478449409. The reversal of 7478449403 is 3049448747.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7478449403 - 2⁴ = 7478449387 is a prime.

It is not a weakly prime, because it can be changed into another prime (7478449409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739224701 + 3739224702.

It is an arithmetic number, because the mean of its divisors is an integer number (3739224702).

Almost surely, 2^7478449403 is an apocalyptic number.

7478449403 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478449403 is an equidigital number, since it uses as much as digits as its factorization.

7478449403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The square root of 7478449403 is about 86478.0284407548. The cubic root of 7478449403 is about 1955.5571834318.

The spelling of 7478449403 in words is "seven billion, four hundred seventy-eight million, four hundred forty-nine thousand, four hundred three".