3658851 has 32 divisors (see below), whose sum is σ = 6297600. Its totient is φ = 2082024.

The previous prime is 3658847. The next prime is 3658867. The reversal of 3658851 is 1588563.

It is not a de Polignac number, because 3658851 - 2² = 3658847 is a prime.

3658851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3658801) 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 31 ways as a sum of consecutive naturals, for example, 15190 + ... + 15428.

It is an arithmetic number, because the mean of its divisors is an integer number (196800).

Almost surely, 2^3658851 is an apocalyptic number.

3658851 is a deficient number, since it is larger than the sum of its proper divisors (2638749).

3658851 is an frugal number, since it uses more digits than its factorization.

3658851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 249 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 3658851 is about 1912.8123274383. The cubic root of 3658851 is about 154.0925260583.

It can be divided in two parts, 365 and 8851, that added together give a square (9216 = 96²).

The spelling of 3658851 in words is "three million, six hundred fifty-eight thousand, eight hundred fifty-one".