84425450 has 12 divisors (see below), whose sum is σ = 157031430. Its totient is φ = 33770160.

The previous prime is 84425423. The next prime is 84425503. The reversal of 84425450 is 5452448.

It can be written as a sum of positive squares in 3 ways, for example, as 75881521 + 8543929 = 8711^2 + 2923^2 .

It is a Curzon number.

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, 844205 + ... + 844304.

Almost surely, 2^84425450 is an apocalyptic number.

84425450 is a deficient number, since it is larger than the sum of its proper divisors (72605980).

84425450 is a wasteful number, since it uses less digits than its factorization.

84425450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688521 (or 1688516 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 84425450 is about 9188.3322752282. The cubic root of 84425450 is about 438.6900606154.

Adding to 84425450 its reverse (5452448), we get a palindrome (89877898).

The spelling of 84425450 in words is "eighty-four million, four hundred twenty-five thousand, four hundred fifty".