3975415 has 4 divisors (see below), whose sum is σ = 4770504. Its totient is φ = 3180328.

The previous prime is 3975383. The next prime is 3975437. The reversal of 3975415 is 5145793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5145793 = 2129 ⋅2417.

It is a cyclic number.

It is not a de Polignac number, because 3975415 - 2⁵ = 3975383 is a prime.

It is a Duffinian number.

3975415 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397537 + ... + 397546.

It is an arithmetic number, because the mean of its divisors is an integer number (1192626).

Almost surely, 2^3975415 is an apocalyptic number.

3975415 is a deficient number, since it is larger than the sum of its proper divisors (795089).

3975415 is an equidigital number, since it uses as much as digits as its factorization.

3975415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795088.

The product of its digits is 18900, while the sum is 34.

The square root of 3975415 is about 1993.8442767679. The cubic root of 3975415 is about 158.4142178298.

The spelling of 3975415 in words is "three million, nine hundred seventy-five thousand, four hundred fifteen".