342691397 has 8 divisors (see below), whose sum is σ = 346939992. Its totient is φ = 338457600.

The previous prime is 342691357. The next prime is 342691409. The reversal of 342691397 is 793196243.

It can be written as a sum of positive squares in 4 ways, for example, as 16924996 + 325766401 = 4114^2 + 18049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342691397 - 2²⁸ = 74255941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342691357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47147 + ... + 53927.

It is an arithmetic number, because the mean of its divisors is an integer number (43367499).

Almost surely, 2^342691397 is an apocalyptic number.

It is an amenable number.

342691397 is a deficient number, since it is larger than the sum of its proper divisors (4248595).

342691397 is an equidigital number, since it uses as much as digits as its factorization.

342691397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399.

The product of its digits is 244944, while the sum is 44.

The square root of 342691397 is about 18511.9258047346. The cubic root of 342691397 is about 699.7900029945.

The spelling of 342691397 in words is "three hundred forty-two million, six hundred ninety-one thousand, three hundred ninety-seven".