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7974 = 232443
BaseRepresentation
bin1111100100110
3101221100
41330212
5223344
6100530
732151
oct17446
911840
107974
115a9a
124746
133825
142c98
152569
hex1f26

7974 has 12 divisors (see below), whose sum is σ = 17316. Its totient is φ = 2652.

The previous prime is 7963. The next prime is 7993. The reversal of 7974 is 4797.

It is a plaindrome in base 5 and base 15.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204 + ... + 239.

It is an arithmetic number, because the mean of its divisors is an integer number (1443).

27974 is an apocalyptic number.

7974 is an abundant number, since it is smaller than the sum of its proper divisors (9342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7974 is a wasteful number, since it uses less digits than its factorization.

7974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 7974 is about 89.2972563968. The cubic root of 7974 is about 19.9783098186.

Adding to 7974 its sum of digits (27), we get a triangular number (8001 = T126).

It can be divided in two parts, 79 and 74, that added together give a triangular number (153 = T17).

The spelling of 7974 in words is "seven thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 443 886 1329 2658 3987 7974