3128896 has 14 divisors (see below), whose sum is σ = 6209030. Its totient is φ = 1564416.

The previous prime is 3128893. The next prime is 3128921. The reversal of 3128896 is 6988213.

3128896 = T₁₅₄ + T₁₅₅ + ... + T₂₈₁.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 360000 = 1664^2 + 600^2 .

It is a super-3 number, since 3×3128896³ = 91895583331610001408, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3128891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24381 + ... + 24508.

Almost surely, 2^3128896 is an apocalyptic number.

3128896 is the 946-th centered heptagonal number.

It is an amenable number.

3128896 is a deficient number, since it is larger than the sum of its proper divisors (3080134).

3128896 is an equidigital number, since it uses as much as digits as its factorization.

3128896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48901 (or 48891 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 3128896 is about 1768.8685649307. The cubic root of 3128896 is about 146.2616188690.

The spelling of 3128896 in words is "three million, one hundred twenty-eight thousand, eight hundred ninety-six".