3952861 has 16 divisors (see below), whose sum is σ = 4517568.
Its totient is φ = 3427200.
The previous prime is 3952813. The next prime is 3952873. The reversal of 3952861 is 1682593.
It can be divided in two parts, 39 and 52861, that added together give a square (52900 = 2302).
It is a cyclic number.
It is not a de Polignac number, because 3952861 - 27 = 3952733 is a prime.
It is a super-2 number, since 2×39528612 = 31250220170642, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3952561) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28785 + ... + 28921.
It is an arithmetic number, because the mean of its divisors is an integer number (282348).
Almost surely, 23952861 is an apocalyptic number.
It is an amenable number.
3952861 is a deficient number, since it is larger than the sum of its proper divisors (564707).
3952861 is a wasteful number, since it uses less digits than its factorization.
3952861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252.
The product of its digits is 12960, while the sum is 34.
The square root of 3952861 is about 1988.1803238137.
The cubic root of 3952861 is about 158.1140686721.
The spelling of 3952861 in words is "three million, nine hundred fifty-two thousand, eight hundred sixty-one".