7801425 has 18 divisors (see below), whose sum is σ = 13973622. Its totient is φ = 4160640.

The previous prime is 7801379. The next prime is 7801427. The reversal of 7801425 is 5241087.

It can be written as a sum of positive squares in 3 ways, for example, as 576 + 7800849 = 24^2 + 2793^2 .

It is not a de Polignac number, because 7801425 - 2⁸ = 7801169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7801427) by changing a digit.

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 in 17 ways as a sum of consecutive naturals, for example, 17112 + ... + 17561.

Almost surely, 2^7801425 is an apocalyptic number.

7801425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7801425 is a deficient number, since it is larger than the sum of its proper divisors (6172197).

7801425 is a wasteful number, since it uses less digits than its factorization.

7801425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34689 (or 34681 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7801425 is about 2793.1031130268. The cubic root of 7801425 is about 198.3313246664.

The spelling of 7801425 in words is "seven million, eight hundred one thousand, four hundred twenty-five".