85421484 has 18 divisors (see below), whose sum is σ = 215926620. Its totient is φ = 28473816.

The previous prime is 85421467. The next prime is 85421519. The reversal of 85421484 is 48412458.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2372819 = 85421484 / (8 + 5 + 4 + 2 + 1 + 4 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1186374 + ... + 1186445.

Almost surely, 2^85421484 is an apocalyptic number.

It is an amenable number.

85421484 is an abundant number, since it is smaller than the sum of its proper divisors (130505136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85421484 is a wasteful number, since it uses less digits than its factorization.

85421484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372829 (or 2372824 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 85421484 is about 9242.3743702579. The cubic root of 85421484 is about 440.4085117902.

It can be divided in two parts, 85421 and 484, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 85421484 in words is "eighty-five million, four hundred twenty-one thousand, four hundred eighty-four".