345642853 has 2 divisors, whose sum is σ = 345642854. Its totient is φ = 345642852.

The previous prime is 345642797. The next prime is 345642877. The reversal of 345642853 is 358246543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300779649 + 44863204 = 17343^2 + 6698^2 .

It is a cyclic number.

It is not a de Polignac number, because 345642853 - 2¹³ = 345634661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345642553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172821426 + 172821427.

It is an arithmetic number, because the mean of its divisors is an integer number (172821427).

Almost surely, 2^345642853 is an apocalyptic number.

It is an amenable number.

345642853 is a deficient number, since it is larger than the sum of its proper divisors (1).

345642853 is an equidigital number, since it uses as much as digits as its factorization.

345642853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

The square root of 345642853 is about 18591.4725882594. The cubic root of 345642853 is about 701.7932612807.

The spelling of 345642853 in words is "three hundred forty-five million, six hundred forty-two thousand, eight hundred fifty-three".