2123827 has 8 divisors (see below), whose sum is σ = 2261952. Its totient is φ = 1987200.

The previous prime is 2123791. The next prime is 2123831. The reversal of 2123827 is 7283212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123827 - 2¹⁹ = 1599539 is a prime.

It is a super-2 number, since 2×2123827² = 9021282251858, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2123867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4377 + ... + 4837.

It is an arithmetic number, because the mean of its divisors is an integer number (282744).

2^2123827 is an apocalyptic number.

2123827 is the 922-nd heptagonal number.

2123827 is a deficient number, since it is larger than the sum of its proper divisors (138125).

2123827 is a wasteful number, since it uses less digits than its factorization.

2123827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its digits is 1344, while the sum is 25.

The square root of 2123827 is about 1457.3355824929. The cubic root of 2123827 is about 128.5404193883.

The spelling of 2123827 in words is "two million, one hundred twenty-three thousand, eight hundred twenty-seven".