4012623 has 6 divisors (see below), whose sum is σ = 5796024. Its totient is φ = 2675076.

The previous prime is 4012621. The next prime is 4012627. The reversal of 4012623 is 3262104.

It is a happy number.

4012623 is a `hidden beast` number, since 40 + 1 + 2 + 623 = 666.

It is not a de Polignac number, because 4012623 - 2¹ = 4012621 is a prime.

It is a super-2 number, since 2×4012623² = 32202286680258, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 4012596 and 4012605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012621) 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, 222915 + ... + 222932.

It is an arithmetic number, because the mean of its divisors is an integer number (966004).

Almost surely, 2^4012623 is an apocalyptic number.

4012623 is a deficient number, since it is larger than the sum of its proper divisors (1783401).

4012623 is a wasteful number, since it uses less digits than its factorization.

4012623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445853 (or 445850 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4012623 is about 2003.1532642312. The cubic root of 4012623 is about 158.9069112160.

Adding to 4012623 its reverse (3262104), we get a palindrome (7274727).

The spelling of 4012623 in words is "four million, twelve thousand, six hundred twenty-three".