3950857 has 4 divisors (see below), whose sum is σ = 4078336. Its totient is φ = 3823380.

The previous prime is 3950827. The next prime is 3950887. The reversal of 3950857 is 7580593.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7580593 = 23 ⋅329591.

It is an interprime number because it is at equal distance from previous prime (3950827) and next prime (3950887).

It is a cyclic number.

It is not a de Polignac number, because 3950857 - 2¹¹ = 3948809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3950827) 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, 63693 + ... + 63754.

It is an arithmetic number, because the mean of its divisors is an integer number (1019584).

Almost surely, 2^3950857 is an apocalyptic number.

It is an amenable number.

3950857 is a deficient number, since it is larger than the sum of its proper divisors (127479).

3950857 is a wasteful number, since it uses less digits than its factorization.

3950857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127478.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 3950857 is about 1987.6762814905. The cubic root of 3950857 is about 158.0873442181.

The spelling of 3950857 in words is "three million, nine hundred fifty thousand, eight hundred fifty-seven".