342970861 has 2 divisors, whose sum is σ = 342970862. Its totient is φ = 342970860.

The previous prime is 342970841. The next prime is 342970877. The reversal of 342970861 is 168079243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319873225 + 23097636 = 17885^2 + 4806^2 .

It is a cyclic number.

It is not a de Polignac number, because 342970861 - 2⁵ = 342970829 is a prime.

It is a super-2 number, since 2×342970861² = 235258022990162642, which contains 22 as substring.

It is equal to p_18445909 and since 342970861 and 18445909 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342970811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171485430 + 171485431.

It is an arithmetic number, because the mean of its divisors is an integer number (171485431).

Almost surely, 2^342970861 is an apocalyptic number.

It is an amenable number.

342970861 is a deficient number, since it is larger than the sum of its proper divisors (1).

342970861 is an equidigital number, since it uses as much as digits as its factorization.

342970861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 342970861 is about 18519.4724816880. The cubic root of 342970861 is about 699.9801769897.

The spelling of 342970861 in words is "three hundred forty-two million, nine hundred seventy thousand, eight hundred sixty-one".