3661031 has 8 divisors (see below), whose sum is σ = 4013328. Its totient is φ = 3312000.

The previous prime is 3661019. The next prime is 3661043. The reversal of 3661031 is 1301663.

It is an interprime number because it is at equal distance from previous prime (3661019) and next prime (3661043).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661031 is a prime.

It is a super-2 number, since 2×3661031² = 26806295965922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3660994 and 3661012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661831) 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, 1961 + ... + 3341.

It is an arithmetic number, because the mean of its divisors is an integer number (501666).

Almost surely, 2^3661031 is an apocalyptic number.

3661031 is a deficient number, since it is larger than the sum of its proper divisors (352297).

3661031 is a wasteful number, since it uses less digits than its factorization.

3661031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3661031 is about 1913.3820841641. The cubic root of 3661031 is about 154.1231235521.

Adding to 3661031 its reverse (1301663), we get a palindrome (4962694).

The spelling of 3661031 in words is "three million, six hundred sixty-one thousand, thirty-one".