84160625 has 30 divisors (see below), whose sum is σ = 112618638. Its totient is φ = 62656000.

The previous prime is 84160619. The next prime is 84160627. The reversal of 84160625 is 52606148.

It can be written as a sum of positive squares in 15 ways, for example, as 83685904 + 474721 = 9148^2 + 689^2 .

It is not a de Polignac number, because 84160625 - 2⁸ = 84160369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84160591 and 84160600.

It is not an unprimeable number, because it can be changed into a prime (84160627) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 945581 + ... + 945669.

Almost surely, 2^84160625 is an apocalyptic number.

84160625 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84160625 is a deficient number, since it is larger than the sum of its proper divisors (28458013).

84160625 is an frugal number, since it uses more digits than its factorization.

84160625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 84160625 is about 9173.9100169993. The cubic root of 84160625 is about 438.2308871441.

The spelling of 84160625 in words is "eighty-four million, one hundred sixty thousand, six hundred twenty-five".