749778 has 16 divisors (see below), whose sum is σ = 1578720. Its totient is φ = 236736.

The previous prime is 749773. The next prime is 749779. The reversal of 749778 is 877947.

749778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (749773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175 + ... + 3402.

It is an arithmetic number, because the mean of its divisors is an integer number (98670).

2⁷⁴⁹⁷⁷⁸ is an apocalyptic number.

749778 is an abundant number, since it is smaller than the sum of its proper divisors (828942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

749778 is a wasteful number, since it uses less digits than its factorization.

749778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601.

The product of its digits is 98784, while the sum is 42.

The square root of 749778 is about 865.8972225386. The cubic root of 749778 is about 90.8470642954.

The spelling of 749778 in words is "seven hundred forty-nine thousand, seven hundred seventy-eight".