4009973 has 4 divisors (see below), whose sum is σ = 4374528. Its totient is φ = 3645420.

The previous prime is 4009939. The next prime is 4009991. The reversal of 4009973 is 3799004.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4009973 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 (4009913) 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, 182261 + ... + 182282.

It is an arithmetic number, because the mean of its divisors is an integer number (1093632).

Almost surely, 2^4009973 is an apocalyptic number.

It is an amenable number.

4009973 is a deficient number, since it is larger than the sum of its proper divisors (364555).

4009973 is a wasteful number, since it uses less digits than its factorization.

4009973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364554.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 4009973 is about 2002.4916978604. The cubic root of 4009973 is about 158.8719219625.

The spelling of 4009973 in words is "four million, nine thousand, nine hundred seventy-three".