748689 has 4 divisors (see below), whose sum is σ = 998256. Its totient is φ = 499124.

The previous prime is 748687. The next prime is 748691. The reversal of 748689 is 986847.

It is a happy number.

748689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (748687) and next prime (748691).

It is a cyclic number.

It is not a de Polignac number, because 748689 - 2¹ = 748687 is a prime.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 748689.

It is not an unprimeable number, because it can be changed into a prime (748687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124779 + ... + 124784.

It is an arithmetic number, because the mean of its divisors is an integer number (249564).

2⁷⁴⁸⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

748689 is a deficient number, since it is larger than the sum of its proper divisors (249567).

748689 is a wasteful number, since it uses less digits than its factorization.

748689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249566.

The product of its digits is 96768, while the sum is 42.

The square root of 748689 is about 865.2681665241. The cubic root of 748689 is about 90.8030599860.

The spelling of 748689 in words is "seven hundred forty-eight thousand, six hundred eighty-nine".