3958478 has 8 divisors (see below), whose sum is σ = 5981472. Its totient is φ = 1964656.

The previous prime is 3958477. The next prime is 3958499. The reversal of 3958478 is 8748593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958477) 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 in 3 ways as a sum of consecutive naturals, for example, 6950 + ... + 7497.

It is an arithmetic number, because the mean of its divisors is an integer number (747684).

Almost surely, 2^3958478 is an apocalyptic number.

3958478 is a deficient number, since it is larger than the sum of its proper divisors (2022994).

3958478 is a wasteful number, since it uses less digits than its factorization.

3958478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14586.

The product of its digits is 241920, while the sum is 44.

The square root of 3958478 is about 1989.5924205726. The cubic root of 3958478 is about 158.1889263832.

The spelling of 3958478 in words is "three million, nine hundred fifty-eight thousand, four hundred seventy-eight".