748227981 has 8 divisors (see below), whose sum is σ = 998852800. Its totient is φ = 498210912.

The previous prime is 748227971. The next prime is 748227989. The reversal of 748227981 is 189722847.

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

It is not a de Polignac number, because 748227981 - 2⁶ = 748227917 is a prime.

It is a super-2 number, since 2×748227981² = 1119690223102672722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 748227981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748227989) 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, 149056 + ... + 153993.

It is an arithmetic number, because the mean of its divisors is an integer number (124856600).

Almost surely, 2^748227981 is an apocalyptic number.

It is an amenable number.

748227981 is a deficient number, since it is larger than the sum of its proper divisors (250624819).

748227981 is a wasteful number, since it uses less digits than its factorization.

748227981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303875.

The product of its digits is 451584, while the sum is 48.

The square root of 748227981 is about 27353.7562502849. The cubic root of 748227981 is about 907.8441827530.

The spelling of 748227981 in words is "seven hundred forty-eight million, two hundred twenty-seven thousand, nine hundred eighty-one".