3531623 has 2 divisors, whose sum is σ = 3531624. Its totient is φ = 3531622.

The previous prime is 3531601. The next prime is 3531659. The reversal of 3531623 is 3261353.

It is a weak prime.

It is an emirp because it is prime and its reverse (3261353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3531623 - 2⁶ = 3531559 is a prime.

It is a super-2 number, since 2×3531623² = 24944722028258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3531683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765811 + 1765812.

It is an arithmetic number, because the mean of its divisors is an integer number (1765812).

Almost surely, 2^3531623 is an apocalyptic number.

3531623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531623 is an equidigital number, since it uses as much as digits as its factorization.

3531623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 23.

The square root of 3531623 is about 1879.2612910396. The cubic root of 3531623 is about 152.2853452271.

Adding to 3531623 its reverse (3261353), we get a palindrome (6792976).

The spelling of 3531623 in words is "three million, five hundred thirty-one thousand, six hundred twenty-three".