863425429 has 4 divisors (see below), whose sum is σ = 871066476. Its totient is φ = 855784384.

The previous prime is 863425363. The next prime is 863425441. The reversal of 863425429 is 924524368.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 832322500 = 5577^2 + 28850^2 .

It is a cyclic number.

It is not a de Polignac number, because 863425429 - 2²¹ = 861328277 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 (863425469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820354 + ... + 3820579.

It is an arithmetic number, because the mean of its divisors is an integer number (217766619).

Almost surely, 2^863425429 is an apocalyptic number.

It is an amenable number.

863425429 is a deficient number, since it is larger than the sum of its proper divisors (7641047).

863425429 is a wasteful number, since it uses less digits than its factorization.

863425429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641046.

The product of its digits is 414720, while the sum is 43.

The square root of 863425429 is about 29384.1016367695. The cubic root of 863425429 is about 952.2294559807.

The spelling of 863425429 in words is "eight hundred sixty-three million, four hundred twenty-five thousand, four hundred twenty-nine".