238311769 has 2 divisors, whose sum is σ = 238311770. Its totient is φ = 238311768.

The previous prime is 238311757. The next prime is 238311779. The reversal of 238311769 is 967113832.

238311769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222606400 + 15705369 = 14920^2 + 3963^2 .

It is a cyclic number.

It is not a de Polignac number, because 238311769 - 2⁷ = 238311641 is a prime.

It is a super-2 number, since 2×238311769² = 113584998487818722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238311779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119155884 + 119155885.

It is an arithmetic number, because the mean of its divisors is an integer number (119155885).

Almost surely, 2^238311769 is an apocalyptic number.

It is an amenable number.

238311769 is a deficient number, since it is larger than the sum of its proper divisors (1).

238311769 is an equidigital number, since it uses as much as digits as its factorization.

238311769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 238311769 is about 15437.3498049374. The cubic root of 238311769 is about 619.9859249319.

It can be divided in two parts, 23831 and 1769, that added together give a square (25600 = 160²).

The spelling of 238311769 in words is "two hundred thirty-eight million, three hundred eleven thousand, seven hundred sixty-nine".