748589979 has 4 divisors (see below), whose sum is σ = 998119976. Its totient is φ = 499059984.

The previous prime is 748589977. The next prime is 748589983. The reversal of 748589979 is 979985847.

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

It is not a de Polignac number, because 748589979 - 2¹ = 748589977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748589977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124764994 + ... + 124764999.

It is an arithmetic number, because the mean of its divisors is an integer number (249529994).

Almost surely, 2^748589979 is an apocalyptic number.

748589979 is a deficient number, since it is larger than the sum of its proper divisors (249529997).

748589979 is a wasteful number, since it uses less digits than its factorization.

748589979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249529996.

The product of its digits is 45722880, while the sum is 66.

The square root of 748589979 is about 27360.3724207109. The cubic root of 748589979 is about 907.9905662983.

The spelling of 748589979 in words is "seven hundred forty-eight million, five hundred eighty-nine thousand, nine hundred seventy-nine".