874181493 has 36 divisors (see below), whose sum is σ = 1362804352. Its totient is φ = 539375760.

The previous prime is 874181491. The next prime is 874181501. The reversal of 874181493 is 394181478.

It is a happy number.

874181493 is a `hidden beast` number, since 87 + 4 + 1 + 81 + 493 = 666.

It is not a de Polignac number, because 874181493 - 2¹ = 874181491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874181491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 144630 + ... + 150552.

Almost surely, 2^874181493 is an apocalyptic number.

It is an amenable number.

874181493 is a deficient number, since it is larger than the sum of its proper divisors (488622859).

874181493 is a wasteful number, since it uses less digits than its factorization.

874181493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006 (or 5980 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 874181493 is about 29566.5603850025. The cubic root of 874181493 is about 956.1672607125.

The spelling of 874181493 in words is "eight hundred seventy-four million, one hundred eighty-one thousand, four hundred ninety-three".