384157723 has 2 divisors, whose sum is σ = 384157724. Its totient is φ = 384157722.

The previous prime is 384157681. The next prime is 384157729. The reversal of 384157723 is 327751483.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384157723 is a prime.

It is a super-2 number, since 2×384157723² = 295154312281089458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (384157729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192078861 + 192078862.

It is an arithmetic number, because the mean of its divisors is an integer number (192078862).

Almost surely, 2^384157723 is an apocalyptic number.

384157723 is a deficient number, since it is larger than the sum of its proper divisors (1).

384157723 is an equidigital number, since it uses as much as digits as its factorization.

384157723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 384157723 is about 19599.9419131792. The cubic root of 384157723 is about 726.9477379943.

It can be divided in two parts, 3841577 and 23, that added together give a square (3841600 = 1960²).

The spelling of 384157723 in words is "three hundred eighty-four million, one hundred fifty-seven thousand, seven hundred twenty-three".