4000973 has 4 divisors (see below), whose sum is σ = 4010688. Its totient is φ = 3991260.

The previous prime is 4000957. The next prime is 4000979. The reversal of 4000973 is 3790004.

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 not a de Polignac number, because 4000973 - 2⁴ = 4000957 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 (4000979) 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, 4211 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (1002672).

Almost surely, 2^4000973 is an apocalyptic number.

It is an amenable number.

4000973 is a deficient number, since it is larger than the sum of its proper divisors (9715).

4000973 is an equidigital number, since it uses as much as digits as its factorization.

4000973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 4000973 is about 2000.2432352092. The cubic root of 4000973 is about 158.7529753302.

Adding to 4000973 its reverse (3790004), we get a palindrome (7790977).

The spelling of 4000973 in words is "four million, nine hundred seventy-three", and thus it is an aban number.