84123425 has 6 divisors (see below), whose sum is σ = 104313078. Its totient is φ = 67298720.

The previous prime is 84123419. The next prime is 84123449. The reversal of 84123425 is 52432148.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19465744 + 64657681 = 4412^2 + 8041^2 .

It is not a de Polignac number, because 84123425 - 2⁴ = 84123409 is a prime.

It is a Duffinian 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, 1682444 + ... + 1682493.

It is an arithmetic number, because the mean of its divisors is an integer number (17385513).

Almost surely, 2^84123425 is an apocalyptic number.

It is an amenable number.

84123425 is a deficient number, since it is larger than the sum of its proper divisors (20189653).

84123425 is a wasteful number, since it uses less digits than its factorization.

84123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364947 (or 3364942 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 84123425 is about 9171.8823040857. The cubic root of 84123425 is about 438.1663098690.

It can be divided in two parts, 84123 and 425, that added together give a palindrome (84548).

The spelling of 84123425 in words is "eighty-four million, one hundred twenty-three thousand, four hundred twenty-five".