3880857 has 4 divisors (see below), whose sum is σ = 5174480. Its totient is φ = 2587236.

The previous prime is 3880853. The next prime is 3880861. The reversal of 3880857 is 7580883.

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 (3880853) and next prime (3880861).

It is not a de Polignac number, because 3880857 - 2² = 3880853 is a prime.

It is a super-2 number, since 2×3880857² = 30122102108898, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3880853) 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, 646807 + ... + 646812.

It is an arithmetic number, because the mean of its divisors is an integer number (1293620).

Almost surely, 2^3880857 is an apocalyptic number.

It is an amenable number.

3880857 is a deficient number, since it is larger than the sum of its proper divisors (1293623).

3880857 is a wasteful number, since it uses less digits than its factorization.

3880857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293622.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 3880857 is about 1969.9890862642. The cubic root of 3880857 is about 157.1481285520.

The spelling of 3880857 in words is "three million, eight hundred eighty thousand, eight hundred fifty-seven".