7742425 has 12 divisors (see below), whose sum is σ = 9759916. Its totient is φ = 6091200.

The previous prime is 7742419. The next prime is 7742437. The reversal of 7742425 is 5242477.

It can be written as a sum of positive squares in 6 ways, for example, as 141376 + 7601049 = 376^2 + 2757^2 .

It is not a de Polignac number, because 7742425 - 2³ = 7742417 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1014 + ... + 4063.

Almost surely, 2^7742425 is an apocalyptic number.

It is an amenable number.

7742425 is a deficient number, since it is larger than the sum of its proper divisors (2017491).

7742425 is a wasteful number, since it uses less digits than its factorization.

7742425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148 (or 5143 counting only the distinct ones).

The product of its digits is 15680, while the sum is 31.

The square root of 7742425 is about 2782.5213386423. The cubic root of 7742425 is about 197.8300841351.

The spelling of 7742425 in words is "seven million, seven hundred forty-two thousand, four hundred twenty-five".