84245481 has 16 divisors (see below), whose sum is σ = 130235520. Its totient is φ = 53721360.

The previous prime is 84245477. The next prime is 84245501. The reversal of 84245481 is 18454248.

It is not a de Polignac number, because 84245481 - 2² = 84245477 is a prime.

It is a super-2 number, since 2×84245481² = 14194602137842722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (84245881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67210 + ... + 68451.

It is an arithmetic number, because the mean of its divisors is an integer number (8139720).

Almost surely, 2^84245481 is an apocalyptic number.

It is an amenable number.

84245481 is a deficient number, since it is larger than the sum of its proper divisors (45990039).

84245481 is a wasteful number, since it uses less digits than its factorization.

84245481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135693 (or 135687 counting only the distinct ones).

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

The square root of 84245481 is about 9178.5337064261. The cubic root of 84245481 is about 438.3781215911.

The spelling of 84245481 in words is "eighty-four million, two hundred forty-five thousand, four hundred eighty-one".