623917043 has 4 divisors (see below), whose sum is σ = 628471320. Its totient is φ = 619362768.

The previous prime is 623917031. The next prime is 623917093. The reversal of 623917043 is 340719326.

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

It is a cyclic number.

It is not a de Polignac number, because 623917043 - 2⁴ = 623917027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623916994 and 623917012.

It is not an unprimeable number, because it can be changed into a prime (623917013) 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, 2276933 + ... + 2277206.

It is an arithmetic number, because the mean of its divisors is an integer number (157117830).

Almost surely, 2^623917043 is an apocalyptic number.

623917043 is a deficient number, since it is larger than the sum of its proper divisors (4554277).

623917043 is a wasteful number, since it uses less digits than its factorization.

623917043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554276.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 623917043 is about 24978.3314694957. The cubic root of 623917043 is about 854.4938663979.

The spelling of 623917043 in words is "six hundred twenty-three million, nine hundred seventeen thousand, forty-three".