3501 has 6 divisors (see below), whose sum is σ = 5070.
Its totient is φ = 2328.
The previous prime is 3499. The next prime is 3511. The reversal of 3501 is 1053.
Subtracting from 3501 its product of nonzero digits (15), we obtain a triangular number (3486 = T83).
Adding to 3501 its reverse (1053), we get a palindrome (4554).
It can be divided in two parts, 350 and 1, that added together give a triangular number (351 = T26).
3501 is nontrivially palindromic in base 7 and base 16.
It can be written as a sum of positive squares in only one way, i.e., 2601 + 900 = 51^2 + 30^2
It is not a de Polignac number, because 3501 - 21 = 3499 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 389 = 3501 / (3 + 5 + 0 + 1).
3501 is an undulating number in base 7 and base 16.
It is a nialpdrome in base 8.
It is a zygodrome in base 8.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3511) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186 + ... + 203.
It is an arithmetic number, because the mean of its divisors is an integer number (845).
23501 is an apocalyptic number.
It is an amenable number.
3501 is a deficient number, since it is larger than the sum of its proper divisors (1569).
3501 is a wasteful number, since it uses less digits than its factorization.
3501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 395 (or 392 counting only the distinct ones).
The product of its (nonzero) digits is 15, while the sum is 9.
The square root of 3501 is about 59.1692487699.
The cubic root of 3501 is about 15.1843907164.
The spelling of 3501 in words is "three thousand, five hundred one".