1494894673 has 4 divisors (see below), whose sum is σ = 1573573360. Its totient is φ = 1416215988.

The previous prime is 1494894671. The next prime is 1494894691. The reversal of 1494894673 is 3764984941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3764984941 = 41 ⋅91828901.

It is a cyclic number.

It is not a de Polignac number, because 1494894673 - 2¹ = 1494894671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1494894671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39339315 + ... + 39339352.

It is an arithmetic number, because the mean of its divisors is an integer number (393393340).

Almost surely, 2^1494894673 is an apocalyptic number.

It is an amenable number.

1494894673 is a deficient number, since it is larger than the sum of its proper divisors (78678687).

1494894673 is an equidigital number, since it uses as much as digits as its factorization.

1494894673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78678686.

The product of its digits is 5225472, while the sum is 55.

The square root of 1494894673 is about 38663.8677966910. The cubic root of 1494894673 is about 1143.4140684705.

The spelling of 1494894673 in words is "one billion, four hundred ninety-four million, eight hundred ninety-four thousand, six hundred seventy-three".