84465428 has 6 divisors (see below), whose sum is σ = 147814506. Its totient is φ = 42232712.

The previous prime is 84465389. The next prime is 84465443. The reversal of 84465428 is 82456448.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 1800964 = 9092^2 + 1342^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10558175 + ... + 10558182.

It is an arithmetic number, because the mean of its divisors is an integer number (24635751).

Almost surely, 2^84465428 is an apocalyptic number.

It is an amenable number.

84465428 is a deficient number, since it is larger than the sum of its proper divisors (63349078).

84465428 is a wasteful number, since it uses less digits than its factorization.

84465428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21116361 (or 21116359 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 84465428 is about 9190.5074941485. The cubic root of 84465428 is about 438.7592940188.

The spelling of 84465428 in words is "eighty-four million, four hundred sixty-five thousand, four hundred twenty-eight".