623437741 has 2 divisors, whose sum is σ = 623437742. Its totient is φ = 623437740.

The previous prime is 623437733. The next prime is 623437799. The reversal of 623437741 is 147734326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555309225 + 68128516 = 23565^2 + 8254^2 .

It is a cyclic number.

It is not a de Polignac number, because 623437741 - 2³ = 623437733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623437741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623431741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311718870 + 311718871.

It is an arithmetic number, because the mean of its divisors is an integer number (311718871).

Almost surely, 2^623437741 is an apocalyptic number.

It is an amenable number.

623437741 is a deficient number, since it is larger than the sum of its proper divisors (1).

623437741 is an equidigital number, since it uses as much as digits as its factorization.

623437741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The square root of 623437741 is about 24968.7352703336. The cubic root of 623437741 is about 854.2749988709.

The spelling of 623437741 in words is "six hundred twenty-three million, four hundred thirty-seven thousand, seven hundred forty-one".