742825 has 12 divisors (see below), whose sum is σ = 943888. Its totient is φ = 579600.

The previous prime is 742817. The next prime is 742891. The reversal of 742825 is 528247.

It is not a de Polignac number, because 742825 - 2³ = 742817 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742793 and 742802.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 730 + ... + 1420.

2⁷⁴²⁸²⁵ is an apocalyptic number.

It is an amenable number.

742825 is a deficient number, since it is larger than the sum of its proper divisors (201063).

742825 is a wasteful number, since it uses less digits than its factorization.

742825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 739 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 742825 is about 861.8729604762. The cubic root of 742825 is about 90.5653710001.

The spelling of 742825 in words is "seven hundred forty-two thousand, eight hundred twenty-five".