1478634667 has 2 divisors, whose sum is σ = 1478634668. Its totient is φ = 1478634666.

The previous prime is 1478634631. The next prime is 1478634671. The reversal of 1478634667 is 7664368741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1478634667 - 2¹⁵ = 1478601899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1478634607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739317333 + 739317334.

It is an arithmetic number, because the mean of its divisors is an integer number (739317334).

Almost surely, 2^1478634667 is an apocalyptic number.

1478634667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478634667 is an equidigital number, since it uses as much as digits as its factorization.

1478634667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 52.

The square root of 1478634667 is about 38453.0189582040. The cubic root of 1478634667 is about 1139.2532985921.

The spelling of 1478634667 in words is "one billion, four hundred seventy-eight million, six hundred thirty-four thousand, six hundred sixty-seven".