85632429 has 4 divisors (see below), whose sum is σ = 114176576. Its totient is φ = 57088284.

The previous prime is 85632419. The next prime is 85632439. The reversal of 85632429 is 92423658.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (85632419) and next prime (85632439).

It is not a de Polignac number, because 85632429 - 2⁴ = 85632413 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 (85632409) 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, 14272069 + ... + 14272074.

It is an arithmetic number, because the mean of its divisors is an integer number (28544144).

Almost surely, 2^85632429 is an apocalyptic number.

It is an amenable number.

85632429 is a deficient number, since it is larger than the sum of its proper divisors (28544147).

85632429 is a wasteful number, since it uses less digits than its factorization.

85632429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28544146.

The product of its digits is 103680, while the sum is 39.

The square root of 85632429 is about 9253.7791739375. The cubic root of 85632429 is about 440.7707376274.

The spelling of 85632429 in words is "eighty-five million, six hundred thirty-two thousand, four hundred twenty-nine".