749678 has 4 divisors (see below), whose sum is σ = 1124520. Its totient is φ = 374838.

The previous prime is 749677. The next prime is 749701. The reversal of 749678 is 876947.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749678.

It is not an unprimeable number, because it can be changed into a prime (749677) 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 as a sum of consecutive naturals, namely, 187418 + ... + 187421.

It is an arithmetic number, because the mean of its divisors is an integer number (281130).

2⁷⁴⁹⁶⁷⁸ is an apocalyptic number.

749678 is a deficient number, since it is larger than the sum of its proper divisors (374842).

749678 is a wasteful number, since it uses less digits than its factorization.

749678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374841.

The product of its digits is 84672, while the sum is 41.

The square root of 749678 is about 865.8394770395. The cubic root of 749678 is about 90.8430252730.

The spelling of 749678 in words is "seven hundred forty-nine thousand, six hundred seventy-eight".