7831425 has 36 divisors (see below), whose sum is σ = 15068976. Its totient is φ = 3578400.

The previous prime is 7831423. The next prime is 7831433. The reversal of 7831425 is 5241387.

7831425 = 371² + 372² + ... + 420².

It is not a de Polignac number, because 7831425 - 2¹ = 7831423 is a prime.

It is a super-2 number, since 2×7831425² = 122662435061250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7831392 and 7831401.

It is not an unprimeable number, because it can be changed into a prime (7831423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2610 + ... + 4740.

Almost surely, 2^7831425 is an apocalyptic number.

7831425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7831425 is a deficient number, since it is larger than the sum of its proper divisors (7237551).

7831425 is a wasteful number, since it uses less digits than its factorization.

7831425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2146 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 7831425 is about 2798.4683310697. The cubic root of 7831425 is about 198.5852239757.

It can be divided in two parts, 7831 and 425, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 7831425 in words is "seven million, eight hundred thirty-one thousand, four hundred twenty-five".