3531731 has 8 divisors (see below), whose sum is σ = 4049760. Its totient is φ = 3017088.

The previous prime is 3531727. The next prime is 3531757. The reversal of 3531731 is 1371353.

It is a happy number.

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 3531731 - 2² = 3531727 is a prime.

It is a super-2 number, since 2×3531731² = 24946247712722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3531697 and 3531706.

It is not an unprimeable number, because it can be changed into a prime (3531791) 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, 2075 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (506220).

Almost surely, 2^3531731 is an apocalyptic number.

3531731 is a deficient number, since it is larger than the sum of its proper divisors (518029).

3531731 is a wasteful number, since it uses less digits than its factorization.

3531731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its digits is 945, while the sum is 23.

The square root of 3531731 is about 1879.2900255150. The cubic root of 3531731 is about 152.2868975492.

The spelling of 3531731 in words is "three million, five hundred thirty-one thousand, seven hundred thirty-one".