84461478 has 16 divisors (see below), whose sum is σ = 169858416. Its totient is φ = 27997920.

The previous prime is 84461471. The next prime is 84461483. The reversal of 84461478 is 87416448.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84461471) 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, 37801 + ... + 39972.

It is an arithmetic number, because the mean of its divisors is an integer number (10616151).

Almost surely, 2^84461478 is an apocalyptic number.

84461478 is an abundant number, since it is smaller than the sum of its proper divisors (85396938).

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

84461478 is a wasteful number, since it uses less digits than its factorization.

84461478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77959.

The product of its digits is 172032, while the sum is 42.

The square root of 84461478 is about 9190.2925959950. The cubic root of 84461478 is about 438.7524544306.

The spelling of 84461478 in words is "eighty-four million, four hundred sixty-one thousand, four hundred seventy-eight".