4978451 has 2 divisors, whose sum is σ = 4978452. Its totient is φ = 4978450.

The previous prime is 4978447. The next prime is 4978453. The reversal of 4978451 is 1548794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4978451 - 2² = 4978447 is a prime.

Together with 4978453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4978453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489225 + 2489226.

It is an arithmetic number, because the mean of its divisors is an integer number (2489226).

Almost surely, 2^4978451 is an apocalyptic number.

4978451 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978451 is an equidigital number, since it uses as much as digits as its factorization.

4978451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 4978451 is about 2231.2442717013. The cubic root of 4978451 is about 170.7515857676.

The spelling of 4978451 in words is "four million, nine hundred seventy-eight thousand, four hundred fifty-one".