3948558493 has 4 divisors (see below), whose sum is σ = 4307518368. Its totient is φ = 3589598620.

The previous prime is 3948558479. The next prime is 3948558527.

3948558493 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3948558493 - 2⁵ = 3948558461 is a prime.

It is a super-2 number, since 2×3948558493² = 31182228345284862098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948558413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179479921 + ... + 179479942.

It is an arithmetic number, because the mean of its divisors is an integer number (1076879592).

Almost surely, 2^3948558493 is an apocalyptic number.

It is an amenable number.

3948558493 is a deficient number, since it is larger than the sum of its proper divisors (358959875).

3948558493 is a wasteful number, since it uses less digits than its factorization.

3948558493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358959874.

The product of its digits is 18662400, while the sum is 58.

The square root of 3948558493 is about 62837.5563894714. The cubic root of 3948558493 is about 1580.5668122055.

The spelling of 3948558493 in words is "three billion, nine hundred forty-eight million, five hundred fifty-eight thousand, four hundred ninety-three".