85478461 has 4 divisors (see below), whose sum is σ = 85508352. Its totient is φ = 85448572.

The previous prime is 85478441. The next prime is 85478483. The reversal of 85478461 is 16487458.

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 a cyclic number.

It is not a de Polignac number, because 85478461 - 2⁷ = 85478333 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 (85478441) 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, 10141 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (21377088).

Almost surely, 2^85478461 is an apocalyptic number.

It is an amenable number.

85478461 is a deficient number, since it is larger than the sum of its proper divisors (29891).

85478461 is a wasteful number, since it uses less digits than its factorization.

85478461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29890.

The product of its digits is 215040, while the sum is 43.

The square root of 85478461 is about 9245.4562353623. The cubic root of 85478461 is about 440.5064090152.

The spelling of 85478461 in words is "eighty-five million, four hundred seventy-eight thousand, four hundred sixty-one".