7940001 has 8 divisors (see below), whose sum is σ = 10736064. Its totient is φ = 5218640.

The previous prime is 7939979. The next prime is 7940011. The reversal of 7940001 is 1000497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7940001 - 2¹⁰ = 7938977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7940001.

It is not an unprimeable number, because it can be changed into a prime (7940011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18426 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (1342008).

Almost surely, 2^7940001 is an apocalyptic number.

7940001 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7940001 is a deficient number, since it is larger than the sum of its proper divisors (2796063).

7940001 is a wasteful number, since it uses less digits than its factorization.

7940001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37351.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 7940001 is about 2817.8007381644. The cubic root of 7940001 is about 199.4987531407.

Adding to 7940001 its reverse (1000497), we get a palindrome (8940498).

The spelling of 7940001 in words is "seven million, nine hundred forty thousand, one".