3900346 has 4 divisors (see below), whose sum is σ = 5850522. Its totient is φ = 1950172.

The previous prime is 3900343. The next prime is 3900349. The reversal of 3900346 is 6430093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6430093 = 83 ⋅77471.

It is an interprime number because it is at equal distance from previous prime (3900343) and next prime (3900349).

It can be written as a sum of positive squares in only one way, i.e., 3759721 + 140625 = 1939^2 + 375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3900346.

It is not an unprimeable number, because it can be changed into a prime (3900341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975085 + ... + 975088.

Almost surely, 2^3900346 is an apocalyptic number.

3900346 is a deficient number, since it is larger than the sum of its proper divisors (1950176).

3900346 is a wasteful number, since it uses less digits than its factorization.

3900346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950175.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3900346 is about 1974.9293658255. The cubic root of 3900346 is about 157.4107464407.

The spelling of 3900346 in words is "three million, nine hundred thousand, three hundred forty-six".