623507043 has 4 divisors (see below), whose sum is σ = 831342728. Its totient is φ = 415671360.

The previous prime is 623506981. The next prime is 623507063. The reversal of 623507043 is 340705326.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 623507043 - 2¹⁰ = 623506019 is a prime.

It is a super-2 number, since 2×623507043² = 777522065341207698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623507043.

It is not an unprimeable number, because it can be changed into a prime (623507063) 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, 103917838 + ... + 103917843.

It is an arithmetic number, because the mean of its divisors is an integer number (207835682).

Almost surely, 2^623507043 is an apocalyptic number.

623507043 is a deficient number, since it is larger than the sum of its proper divisors (207835685).

623507043 is a wasteful number, since it uses less digits than its factorization.

623507043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207835684.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 623507043 is about 24970.1230073062. The cubic root of 623507043 is about 854.3066517361.

The spelling of 623507043 in words is "six hundred twenty-three million, five hundred seven thousand, forty-three".