3956497 has 4 divisors (see below), whose sum is σ = 3973156. Its totient is φ = 3939840.

The previous prime is 3956471. The next prime is 3956501. The reversal of 3956497 is 7946593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7946593 = 919 ⋅8647.

It can be written as a sum of positive squares in 2 ways, for example, as 1985281 + 1971216 = 1409^2 + 1404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3956497 is a prime.

It is a super-2 number, since 2×3956497² = 31307737022018, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹⁰ + 9² + 5⁹ + 6⁸ + 4⁹ + 9² + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3956297) 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, 7968 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (993289).

Almost surely, 2^3956497 is an apocalyptic number.

It is an amenable number.

3956497 is a deficient number, since it is larger than the sum of its proper divisors (16659).

3956497 is a wasteful number, since it uses less digits than its factorization.

3956497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16658.

The product of its digits is 204120, while the sum is 43.

The square root of 3956497 is about 1989.0945176135. The cubic root of 3956497 is about 158.1625337012.

The spelling of 3956497 in words is "three million, nine hundred fifty-six thousand, four hundred ninety-seven".