3845657 has 4 divisors (see below), whose sum is σ = 4048080. Its totient is φ = 3643236.

The previous prime is 3845651. The next prime is 3845663. The reversal of 3845657 is 7565483.

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 an interprime number because it is at equal distance from previous prime (3845651) and next prime (3845663).

It is a cyclic number.

It is not a de Polignac number, because 3845657 - 2⁶ = 3845593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3845657.

It is not an unprimeable number, because it can be changed into a prime (3845651) 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, 101183 + ... + 101220.

It is an arithmetic number, because the mean of its divisors is an integer number (1012020).

Almost surely, 2^3845657 is an apocalyptic number.

It is an amenable number.

3845657 is a deficient number, since it is larger than the sum of its proper divisors (202423).

3845657 is a wasteful number, since it uses less digits than its factorization.

3845657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202422.

The product of its digits is 100800, while the sum is 38.

The square root of 3845657 is about 1961.0346758790. The cubic root of 3845657 is about 156.6715651605.

The spelling of 3845657 in words is "three million, eight hundred forty-five thousand, six hundred fifty-seven".