1672881 has 16 divisors (see below), whose sum is σ = 2619264. Its totient is φ = 929664.

The previous prime is 1672873. The next prime is 1672889. The reversal of 1672881 is 1882761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1672873) and next prime (1672889).

It is not a de Polignac number, because 1672881 - 2³ = 1672873 is a prime.

It is a super-2 number, since 2×1672881² = 5597061680322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (163704).

2^1672881 is an apocalyptic number.

It is an amenable number.

1672881 is a deficient number, since it is larger than the sum of its proper divisors (946383).

1672881 is a wasteful number, since it uses less digits than its factorization.

1672881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its digits is 5376, while the sum is 33.

The square root of 1672881 is about 1293.3990103599. The cubic root of 1672881 is about 118.7102855191.

The spelling of 1672881 in words is "one million, six hundred seventy-two thousand, eight hundred eighty-one".