3985426 has 4 divisors (see below), whose sum is σ = 5978142.
Its totient is φ = 1992712.
The previous prime is 3985409. The next prime is 3985433. The reversal of 3985426 is 6245893.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6245893 = 733 ⋅8521.
It can be written as a sum of positive squares in only one way, i.e., 2893401 + 1092025 = 1701^2 + 1045^2
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996355 + ... + 996358.
Almost surely, 23985426 is an apocalyptic number.
3985426 is a deficient number, since it is larger than the sum of its proper divisors (1992716).
3985426 is a wasteful number, since it uses less digits than its factorization.
3985426 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1992715.
The product of its digits is 51840, while the sum is 37.
The square root of 3985426 is about 1996.3531751672.
The cubic root of 3985426 is about 158.5470807207.
The spelling of 3985426 in words is "three million, nine hundred eighty-five thousand, four hundred twenty-six".