85214429 has 4 divisors (see below), whose sum is σ = 85346784. Its totient is φ = 85082076.

The previous prime is 85214417. The next prime is 85214447. The reversal of 85214429 is 92441258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85214429 - 2²⁰ = 84165853 is a prime.

It is a super-2 number, since 2×85214429² = 14522997819592082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85214329) 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, 65207 + ... + 66500.

It is an arithmetic number, because the mean of its divisors is an integer number (21336696).

Almost surely, 2^85214429 is an apocalyptic number.

It is an amenable number.

85214429 is a deficient number, since it is larger than the sum of its proper divisors (132355).

85214429 is a wasteful number, since it uses less digits than its factorization.

85214429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132354.

The product of its digits is 23040, while the sum is 35.

The square root of 85214429 is about 9231.1661776831. The cubic root of 85214429 is about 440.0523852918.

The spelling of 85214429 in words is "eighty-five million, two hundred fourteen thousand, four hundred twenty-nine".