855970429 has 2 divisors, whose sum is σ = 855970430. Its totient is φ = 855970428.

The previous prime is 855970411. The next prime is 855970447. The reversal of 855970429 is 924079558.

It is a balanced prime because it is at equal distance from previous prime (855970411) and next prime (855970447).

It can be written as a sum of positive squares in only one way, i.e., 586124100 + 269846329 = 24210^2 + 16427^2 .

It is a cyclic number.

It is not a de Polignac number, because 855970429 - 2²¹ = 853873277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855970459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427985214 + 427985215.

It is an arithmetic number, because the mean of its divisors is an integer number (427985215).

Almost surely, 2^855970429 is an apocalyptic number.

It is an amenable number.

855970429 is a deficient number, since it is larger than the sum of its proper divisors (1).

855970429 is an equidigital number, since it uses as much as digits as its factorization.

855970429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 855970429 is about 29256.9723143048. The cubic root of 855970429 is about 949.4809460023.

The spelling of 855970429 in words is "eight hundred fifty-five million, nine hundred seventy thousand, four hundred twenty-nine".