3501623 has 2 divisors, whose sum is σ = 3501624. Its totient is φ = 3501622.

The previous prime is 3501613. The next prime is 3501629. The reversal of 3501623 is 3261053.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3501623 - 2⁴ = 3501607 is a prime.

It is a super-2 number, since 2×3501623² = 24522727268258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3501595 and 3501604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3501629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750811 + 1750812.

It is an arithmetic number, because the mean of its divisors is an integer number (1750812).

Almost surely, 2^3501623 is an apocalyptic number.

3501623 is a deficient number, since it is larger than the sum of its proper divisors (1).

3501623 is an equidigital number, since it uses as much as digits as its factorization.

3501623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3501623 is about 1871.2624081085. The cubic root of 3501623 is about 151.8529134619.

Adding to 3501623 its reverse (3261053), we get a palindrome (6762676).

The spelling of 3501623 in words is "three million, five hundred one thousand, six hundred twenty-three".