3921922 has 4 divisors (see below), whose sum is σ = 5882886. Its totient is φ = 1960960.

The previous prime is 3921919. The next prime is 3921941. The reversal of 3921922 is 2291293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2291293 = 239 ⋅9587.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 1874161 = 1431^2 + 1369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980479 + ... + 980482.

Almost surely, 2^3921922 is an apocalyptic number.

3921922 is a deficient number, since it is larger than the sum of its proper divisors (1960964).

3921922 is a wasteful number, since it uses less digits than its factorization.

3921922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960963.

The product of its digits is 1944, while the sum is 28.

The square root of 3921922 is about 1980.3843061386. The cubic root of 3921922 is about 157.7004686757.

It can be divided in two parts, 392 and 1922, that multiplied together give a square (753424 = 868²).

The spelling of 3921922 in words is "three million, nine hundred twenty-one thousand, nine hundred twenty-two".