704457 has 24 divisors (see below), whose sum is σ = 1141504. Its totient is φ = 431568.

The previous prime is 704453. The next prime is 704461. The reversal of 704457 is 754407.

It is an interprime number because it is at equal distance from previous prime (704453) and next prime (704461).

It is not a de Polignac number, because 704457 - 2² = 704453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 704457.

It is not an unprimeable number, because it can be changed into a prime (704453) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3048 + ... + 3270.

2⁷⁰⁴⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

704457 is a deficient number, since it is larger than the sum of its proper divisors (437047).

704457 is a wasteful number, since it uses less digits than its factorization.

704457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 704457 is about 839.3193671065. The cubic root of 704457 is about 88.9784486807.

The spelling of 704457 in words is "seven hundred four thousand, four hundred fifty-seven".