984975451 has 2 divisors, whose sum is σ = 984975452. Its totient is φ = 984975450.

The previous prime is 984975443. The next prime is 984975469. The reversal of 984975451 is 154579489.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 984975451 - 2³ = 984975443 is a prime.

It is not a weakly prime, because it can be changed into another prime (984975421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492487725 + 492487726.

It is an arithmetic number, because the mean of its divisors is an integer number (492487726).

Almost surely, 2^984975451 is an apocalyptic number.

984975451 is a deficient number, since it is larger than the sum of its proper divisors (1).

984975451 is an equidigital number, since it uses as much as digits as its factorization.

984975451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The square root of 984975451 is about 31384.3185524236. The cubic root of 984975451 is about 994.9665236248.

The spelling of 984975451 in words is "nine hundred eighty-four million, nine hundred seventy-five thousand, four hundred fifty-one".