1494873647 has 2 divisors, whose sum is σ = 1494873648. Its totient is φ = 1494873646.

The previous prime is 1494873617. The next prime is 1494873671. The reversal of 1494873647 is 7463784941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1494873647 - 2¹⁴ = 1494857263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1494873607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747436823 + 747436824.

It is an arithmetic number, because the mean of its divisors is an integer number (747436824).

Almost surely, 2^1494873647 is an apocalyptic number.

1494873647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494873647 is an equidigital number, since it uses as much as digits as its factorization.

1494873647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The square root of 1494873647 is about 38663.5958881219. The cubic root of 1494873647 is about 1143.4087076610.

The spelling of 1494873647 in words is "one billion, four hundred ninety-four million, eight hundred seventy-three thousand, six hundred forty-seven".