8042493 has 4 divisors (see below), whose sum is σ = 10723328. Its totient is φ = 5361660.

The previous prime is 8042477. The next prime is 8042509. The reversal of 8042493 is 3942408.

It is a happy number.

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.

It is an interprime number because it is at equal distance from previous prime (8042477) and next prime (8042509).

It is not a de Polignac number, because 8042493 - 2⁴ = 8042477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8042493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042413) 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, 1340413 + ... + 1340418.

It is an arithmetic number, because the mean of its divisors is an integer number (2680832).

Almost surely, 2^8042493 is an apocalyptic number.

It is an amenable number.

8042493 is a deficient number, since it is larger than the sum of its proper divisors (2680835).

8042493 is a wasteful number, since it uses less digits than its factorization.

8042493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680834.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 8042493 is about 2835.9289483342. The cubic root of 8042493 is about 200.3534832134.

The spelling of 8042493 in words is "eight million, forty-two thousand, four hundred ninety-three".