3500857 has 4 divisors (see below), whose sum is σ = 3543120. Its totient is φ = 3458596.

The previous prime is 3500831. The next prime is 3500863. The reversal of 3500857 is 7580053.

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 3500857 - 2¹⁹ = 2976569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3500897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21007 + ... + 21172.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^3500857 is an apocalyptic number.

It is an amenable number.

3500857 is a deficient number, since it is larger than the sum of its proper divisors (42263).

3500857 is an equidigital number, since it uses as much as digits as its factorization.

3500857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42262.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 3500857 is about 1871.0577222523. The cubic root of 3500857 is about 151.8418397575.

The spelling of 3500857 in words is "three million, five hundred thousand, eight hundred fifty-seven".