3950558 has 4 divisors (see below), whose sum is σ = 5925840. Its totient is φ = 1975278.

The previous prime is 3950533. The next prime is 3950563. The reversal of 3950558 is 8550593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8550593 = 43 ⋅198851.

It is a super-3 number, since 3×3950558³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987638 + ... + 987641.

It is an arithmetic number, because the mean of its divisors is an integer number (1481460).

Almost surely, 2^3950558 is an apocalyptic number.

3950558 is a deficient number, since it is larger than the sum of its proper divisors (1975282).

3950558 is a wasteful number, since it uses less digits than its factorization.

3950558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975281.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 3950558 is about 1987.6010666127. The cubic root of 3950558 is about 158.0833561122.

Adding to 3950558 its sum of digits (35), we get a palindrome (3950593).

The spelling of 3950558 in words is "three million, nine hundred fifty thousand, five hundred fifty-eight".