85497429 has 4 divisors (see below), whose sum is σ = 113996576. Its totient is φ = 56998284.

The previous prime is 85497407. The next prime is 85497439. The reversal of 85497429 is 92479458.

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 not a de Polignac number, because 85497429 - 2¹¹ = 85495381 is a prime.

It is a super-2 number, since 2×85497429² = 14619620731220082, 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 (85497439) 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, 14249569 + ... + 14249574.

It is an arithmetic number, because the mean of its divisors is an integer number (28499144).

Almost surely, 2^85497429 is an apocalyptic number.

It is an amenable number.

85497429 is a deficient number, since it is larger than the sum of its proper divisors (28499147).

85497429 is a wasteful number, since it uses less digits than its factorization.

85497429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28499146.

The product of its digits is 725760, while the sum is 48.

The square root of 85497429 is about 9246.4819796504. The cubic root of 85497429 is about 440.5389899621.

The spelling of 85497429 in words is "eighty-five million, four hundred ninety-seven thousand, four hundred twenty-nine".