383745623 has 2 divisors, whose sum is σ = 383745624. Its totient is φ = 383745622.

The previous prime is 383745589. The next prime is 383745653. The reversal of 383745623 is 326547383.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383745623 is a prime.

It is a super-4 number, since 4×383745623⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383745653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191872811 + 191872812.

It is an arithmetic number, because the mean of its divisors is an integer number (191872812).

Almost surely, 2^383745623 is an apocalyptic number.

383745623 is a deficient number, since it is larger than the sum of its proper divisors (1).

383745623 is an equidigital number, since it uses as much as digits as its factorization.

383745623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 41.

The square root of 383745623 is about 19589.4263060458. The cubic root of 383745623 is about 726.6877038724.

The spelling of 383745623 in words is "three hundred eighty-three million, seven hundred forty-five thousand, six hundred twenty-three".