748739 has 4 divisors (see below), whose sum is σ = 750720. Its totient is φ = 746760.

The previous prime is 748729. The next prime is 748763. The reversal of 748739 is 937847.

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

It is a cyclic number.

It is not a de Polignac number, because 748739 - 2⁴ = 748723 is a prime.

It is a super-2 number, since 2×748739² = 1121220180242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748729) 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 in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 1244.

It is an arithmetic number, because the mean of its divisors is an integer number (187680).

2⁷⁴⁸⁷³⁹ is an apocalyptic number.

748739 is a deficient number, since it is larger than the sum of its proper divisors (1981).

748739 is a wasteful number, since it uses less digits than its factorization.

748739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its digits is 42336, while the sum is 38.

The square root of 748739 is about 865.2970588185. The cubic root of 748739 is about 90.8050813202.

The spelling of 748739 in words is "seven hundred forty-eight thousand, seven hundred thirty-nine".