7940497 has 8 divisors (see below), whose sum is σ = 8319744. Its totient is φ = 7564128.

The previous prime is 7940483. The next prime is 7940503.

7940497 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7940497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7940417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6648 + ... + 7750.

It is an arithmetic number, because the mean of its divisors is an integer number (1039968).

Almost surely, 2^7940497 is an apocalyptic number.

It is an amenable number.

7940497 is a deficient number, since it is larger than the sum of its proper divisors (379247).

7940497 is a wasteful number, since it uses less digits than its factorization.

7940497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7940497 is about 2817.8887486911. Note that the first 3 decimals coincide. The cubic root of 7940497 is about 199.5029071839.

The spelling of 7940497 in words is "seven million, nine hundred forty thousand, four hundred ninety-seven".