3948458 has 4 divisors (see below), whose sum is σ = 5922690. Its totient is φ = 1974228.

The previous prime is 3948431. The next prime is 3948463. The reversal of 3948458 is 8548493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8548493 = 157 ⋅54449.

It can be written as a sum of positive squares in only one way, i.e., 3948169 + 289 = 1987^2 + 17^2 .

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987113 + ... + 987116.

Almost surely, 2^3948458 is an apocalyptic number.

3948458 is a deficient number, since it is larger than the sum of its proper divisors (1974232).

3948458 is a wasteful number, since it uses less digits than its factorization.

3948458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974231.

The product of its digits is 138240, while the sum is 41.

The square root of 3948458 is about 1987.0727213668. The cubic root of 3948458 is about 158.0553403325.

The spelling of 3948458 in words is "three million, nine hundred forty-eight thousand, four hundred fifty-eight".