3895047 has 32 divisors (see below), whose sum is σ = 6336960. Its totient is φ = 2379456.

The previous prime is 3895043. The next prime is 3895049. The reversal of 3895047 is 7405983.

It is not a de Polignac number, because 3895047 - 2² = 3895043 is a prime.

It is a super-2 number, since 2×3895047² = 30342782264418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

3895047 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28363 + ... + 28499.

It is an arithmetic number, because the mean of its divisors is an integer number (198030).

Almost surely, 2^3895047 is an apocalyptic number.

3895047 is a deficient number, since it is larger than the sum of its proper divisors (2441913).

3895047 is an equidigital number, since it uses as much as digits as its factorization.

3895047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3895047 is about 1973.5873428860. The cubic root of 3895047 is about 157.3394281888.

The spelling of 3895047 in words is "three million, eight hundred ninety-five thousand, forty-seven".