4072993 has 4 divisors (see below), whose sum is σ = 4087188. Its totient is φ = 4058800.

The previous prime is 4072987. The next prime is 4073009. The reversal of 4072993 is 3992704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3621409 + 451584 = 1903^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072993 - 2⁵ = 4072961 is a prime.

It is a Duffinian number.

4072993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4072903) 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, 6658 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (1021797).

Almost surely, 2^4072993 is an apocalyptic number.

It is an amenable number.

4072993 is a deficient number, since it is larger than the sum of its proper divisors (14195).

4072993 is a wasteful number, since it uses less digits than its factorization.

4072993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14194.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 4072993 is about 2018.1657513693. The cubic root of 4072993 is about 159.6998670408.

The spelling of 4072993 in words is "four million, seventy-two thousand, nine hundred ninety-three".