623474441 has 4 divisors (see below), whose sum is σ = 629194500. Its totient is φ = 617754384.

The previous prime is 623474437. The next prime is 623474443. The reversal of 623474441 is 144474326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144474326 = 2 ⋅72237163.

It can be written as a sum of positive squares in 2 ways, for example, as 397603600 + 225870841 = 19940^2 + 15029^2 .

It is a cyclic number.

It is not a de Polignac number, because 623474441 - 2² = 623474437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623474443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2859866 + ... + 2860083.

It is an arithmetic number, because the mean of its divisors is an integer number (157298625).

Almost surely, 2^623474441 is an apocalyptic number.

It is an amenable number.

623474441 is a deficient number, since it is larger than the sum of its proper divisors (5720059).

623474441 is a wasteful number, since it uses less digits than its factorization.

623474441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720058.

The product of its digits is 64512, while the sum is 35.

The square root of 623474441 is about 24969.4701786001. The cubic root of 623474441 is about 854.2917614521.

The spelling of 623474441 in words is "six hundred twenty-three million, four hundred seventy-four thousand, four hundred forty-one".