85428963 has 24 divisors (see below), whose sum is σ = 128434176. Its totient is φ = 54658800.

The previous prime is 85428947. The next prime is 85428989. The reversal of 85428963 is 36982458.

It is not a de Polignac number, because 85428963 - 2⁴ = 85428947 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (85428913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34228 + ... + 36638.

It is an arithmetic number, because the mean of its divisors is an integer number (5351424).

Almost surely, 2^85428963 is an apocalyptic number.

85428963 is a deficient number, since it is larger than the sum of its proper divisors (43005213).

85428963 is a wasteful number, since it uses less digits than its factorization.

85428963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575 (or 2572 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 85428963 is about 9242.7789652247. The cubic root of 85428963 is about 440.4213646034.

The spelling of 85428963 in words is "eighty-five million, four hundred twenty-eight thousand, nine hundred sixty-three".