Cookie Consent by
Search a number
874 = 21923

874 has 8 divisors (see below), whose sum is σ = 1440. Its totient is φ = 396.

The previous prime is 863. The next prime is 877. The reversal of 874 is 478.

It is a happy number.

874 is nontrivially palindromic in base 3.

874 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 5, base 7, base 14 and base 16.

It is a nialpdrome in base 10.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (877) 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, 27 + ... + 49.

It is an arithmetic number, because the mean of its divisors is an integer number (180).

874 is the 19-th heptagonal number.

874 is a deficient number, since it is larger than the sum of its proper divisors (566).

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

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

The sum of its prime factors is 44.

The product of its digits is 224, while the sum is 19.

The square root of 874 is about 29.5634909982. The cubic root of 874 is about 9.5610108465.

It can be divided in two parts, 87 and 4, that added together give a triangular number (91 = T13).

The spelling of 874 in words is "eight hundred seventy-four", and thus it is an aban number.

Divisors: 1 2 19 23 38 46 437 874