3920497 has 8 divisors (see below), whose sum is σ = 4504896. Its totient is φ = 3342192.

The previous prime is 3920471. The next prime is 3920509. The reversal of 3920497 is 7940293.

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

It is a de Polignac number, because none of the positive numbers 2^k-3920497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3920417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (563112).

Almost surely, 2^3920497 is an apocalyptic number.

It is an amenable number.

3920497 is a deficient number, since it is larger than the sum of its proper divisors (584399).

3920497 is a wasteful number, since it uses less digits than its factorization.

3920497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

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

The square root of 3920497 is about 1980.0244947980. The cubic root of 3920497 is about 157.6813666138.

The spelling of 3920497 in words is "three million, nine hundred twenty thousand, four hundred ninety-seven".