3955278 has 16 divisors (see below), whose sum is σ = 8029440. Its totient is φ = 1298616.

The previous prime is 3955277. The next prime is 3955279. The reversal of 3955278 is 8725593.

It is an interprime number because it is at equal distance from previous prime (3955277) and next prime (3955279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3955277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4518 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (501840).

Almost surely, 2^3955278 is an apocalyptic number.

3955278 is an abundant number, since it is smaller than the sum of its proper divisors (4074162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3955278 is a wasteful number, since it uses less digits than its factorization.

3955278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911.

The product of its digits is 75600, while the sum is 39.

The square root of 3955278 is about 1988.7880731742. The cubic root of 3955278 is about 158.1462886969.

The spelling of 3955278 in words is "three million, nine hundred fifty-five thousand, two hundred seventy-eight".