748991 has 8 divisors (see below), whose sum is σ = 795264. Its totient is φ = 704160.

The previous prime is 748987. The next prime is 749011. The reversal of 748991 is 199847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 748991 - 2² = 748987 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748921) 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, 821 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (99408).

2⁷⁴⁸⁹⁹¹ is an apocalyptic number.

748991 is a deficient number, since it is larger than the sum of its proper divisors (46273).

748991 is a wasteful number, since it uses less digits than its factorization.

748991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 18144, while the sum is 38.

The square root of 748991 is about 865.4426613011. The cubic root of 748991 is about 90.8152674748.

The spelling of 748991 in words is "seven hundred forty-eight thousand, nine hundred ninety-one".