238626697 has 4 divisors (see below), whose sum is σ = 238693780. Its totient is φ = 238559616.

The previous prime is 238626677. The next prime is 238626701. The reversal of 238626697 is 796626832.

It is a happy number.

238626697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201526416 + 37100281 = 14196^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 238626697 - 2¹¹ = 238624649 is a prime.

It is a super-2 number, since 2×238626697² = 113885401042259618, which contains 22 as substring.

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 238626697.

It is not an unprimeable number, because it can be changed into a prime (238626677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27888 + ... + 35425.

It is an arithmetic number, because the mean of its divisors is an integer number (59673445).

Almost surely, 2^238626697 is an apocalyptic number.

It is an amenable number.

238626697 is a deficient number, since it is larger than the sum of its proper divisors (67083).

238626697 is an equidigital number, since it uses as much as digits as its factorization.

238626697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67082.

The product of its digits is 1306368, while the sum is 49.

The square root of 238626697 is about 15447.5466336891. The cubic root of 238626697 is about 620.2589076491.

The spelling of 238626697 in words is "two hundred thirty-eight million, six hundred twenty-six thousand, six hundred ninety-seven".