85425769 has 8 divisors (see below), whose sum is σ = 100360512. Its totient is φ = 71685840.

The previous prime is 85425763. The next prime is 85425773. The reversal of 85425769 is 96752458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85425769 - 2³ = 85425761 is a prime.

It is a super-2 number, since 2×85425769² = 14595124018482722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85425761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298549 + ... + 298834.

It is an arithmetic number, because the mean of its divisors is an integer number (12545064).

Almost surely, 2^85425769 is an apocalyptic number.

It is an amenable number.

85425769 is a deficient number, since it is larger than the sum of its proper divisors (14934743).

85425769 is a wasteful number, since it uses less digits than its factorization.

85425769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597407.

The product of its digits is 604800, while the sum is 46.

The square root of 85425769 is about 9242.6061800771. The cubic root of 85425769 is about 440.4158757414.

The spelling of 85425769 in words is "eighty-five million, four hundred twenty-five thousand, seven hundred sixty-nine".