3908722 has 4 divisors (see below), whose sum is σ = 5863086. Its totient is φ = 1954360.

The previous prime is 3908711. The next prime is 3908731. The reversal of 3908722 is 2278093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2886601 + 1022121 = 1699^2 + 1011^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977179 + ... + 977182.

Almost surely, 2^3908722 is an apocalyptic number.

3908722 is a deficient number, since it is larger than the sum of its proper divisors (1954364).

3908722 is a wasteful number, since it uses less digits than its factorization.

3908722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954363.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3908722 is about 1977.0488107277. The cubic root of 3908722 is about 157.5233458297.

The spelling of 3908722 in words is "three million, nine hundred eight thousand, seven hundred twenty-two".