104591493 has 20 divisors (see below), whose sum is σ = 156699840. Its totient is φ = 69523272.

The previous prime is 104591491. The next prime is 104591507. The reversal of 104591493 is 394195401.

It is a happy number.

It is not a de Polignac number, because 104591493 - 2¹ = 104591491 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104591491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28996 + ... + 32402.

It is an arithmetic number, because the mean of its divisors is an integer number (7834992).

Almost surely, 2^104591493 is an apocalyptic number.

It is an amenable number.

104591493 is a deficient number, since it is larger than the sum of its proper divisors (52108347).

104591493 is an equidigital number, since it uses as much as digits as its factorization.

104591493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798 (or 3789 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 104591493 is about 10226.9982399529. The cubic root of 104591493 is about 471.1567898634.

Adding to 104591493 its sum of digits (36), we get a square (104591529 = 10227²).

The spelling of 104591493 in words is "one hundred four million, five hundred ninety-one thousand, four hundred ninety-three".