85454279 has 4 divisors (see below), whose sum is σ = 86729784. Its totient is φ = 84178776.

The previous prime is 85454261. The next prime is 85454297. The reversal of 85454279 is 97245458.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85454261) and next prime (85454297).

It is a cyclic number.

It is not a de Polignac number, because 85454279 - 2²⁰ = 84405703 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 (85454219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637652 + ... + 637785.

It is an arithmetic number, because the mean of its divisors is an integer number (21682446).

Almost surely, 2^85454279 is an apocalyptic number.

85454279 is a deficient number, since it is larger than the sum of its proper divisors (1275505).

85454279 is a wasteful number, since it uses less digits than its factorization.

85454279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275504.

The product of its digits is 403200, while the sum is 44.

The square root of 85454279 is about 9244.1483653174. The cubic root of 85454279 is about 440.4648650966.

The spelling of 85454279 in words is "eighty-five million, four hundred fifty-four thousand, two hundred seventy-nine".