3922397 has 4 divisors (see below), whose sum is σ = 4092960. Its totient is φ = 3751836.

The previous prime is 3922367. The next prime is 3922403. The reversal of 3922397 is 7932293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7932293 = 127 ⋅62459.

It is a cyclic number.

It is not a de Polignac number, because 3922397 - 2¹² = 3918301 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3922327) 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, 85247 + ... + 85292.

It is an arithmetic number, because the mean of its divisors is an integer number (1023240).

Almost surely, 2^3922397 is an apocalyptic number.

It is an amenable number.

3922397 is a deficient number, since it is larger than the sum of its proper divisors (170563).

3922397 is a wasteful number, since it uses less digits than its factorization.

3922397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170562.

The product of its digits is 20412, while the sum is 35.

The square root of 3922397 is about 1980.5042287256. The cubic root of 3922397 is about 157.7068350014.

The spelling of 3922397 in words is "three million, nine hundred twenty-two thousand, three hundred ninety-seven".