342691357 has 2 divisors, whose sum is σ = 342691358. Its totient is φ = 342691356.

The previous prime is 342691343. The next prime is 342691409. The reversal of 342691357 is 753196243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209496676 + 133194681 = 14474^2 + 11541^2 .

It is a cyclic number.

It is not a de Polignac number, because 342691357 - 2¹⁹ = 342167069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342691157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171345678 + 171345679.

It is an arithmetic number, because the mean of its divisors is an integer number (171345679).

Almost surely, 2^342691357 is an apocalyptic number.

It is an amenable number.

342691357 is a deficient number, since it is larger than the sum of its proper divisors (1).

342691357 is an equidigital number, since it uses as much as digits as its factorization.

342691357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 342691357 is about 18511.9247243500. The cubic root of 342691357 is about 699.7899757673.

The spelling of 342691357 in words is "three hundred forty-two million, six hundred ninety-one thousand, three hundred fifty-seven".