623932741 has 4 divisors (see below), whose sum is σ = 624196300. Its totient is φ = 623669184.

The previous prime is 623932733. The next prime is 623932747. The reversal of 623932741 is 147239326.

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

It can be written as a sum of positive squares in 2 ways, for example, as 202492900 + 421439841 = 14230^2 + 20529^2 .

It is a cyclic number.

It is not a de Polignac number, because 623932741 - 2³ = 623932733 is a prime.

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 623932741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623932747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128196 + ... + 132973.

It is an arithmetic number, because the mean of its divisors is an integer number (156049075).

Almost surely, 2^623932741 is an apocalyptic number.

It is an amenable number.

623932741 is a deficient number, since it is larger than the sum of its proper divisors (263559).

623932741 is a wasteful number, since it uses less digits than its factorization.

623932741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263558.

The product of its digits is 54432, while the sum is 37.

The square root of 623932741 is about 24978.6456998773. The cubic root of 623932741 is about 854.5010328058.

The spelling of 623932741 in words is "six hundred twenty-three million, nine hundred thirty-two thousand, seven hundred forty-one".