748943621 has 8 divisors (see below), whose sum is σ = 769749120. Its totient is φ = 728421408.

The previous prime is 748943617. The next prime is 748943627. The reversal of 748943621 is 126349847.

748943621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 748943621 - 2² = 748943617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748943627) 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, 65456 + ... + 76041.

It is an arithmetic number, because the mean of its divisors is an integer number (96218640).

Almost surely, 2^748943621 is an apocalyptic number.

It is an amenable number.

748943621 is a deficient number, since it is larger than the sum of its proper divisors (20805499).

748943621 is a wasteful number, since it uses less digits than its factorization.

748943621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141643.

The product of its digits is 290304, while the sum is 44.

The square root of 748943621 is about 27366.8343255116. The cubic root of 748943621 is about 908.1335253091.

The spelling of 748943621 in words is "seven hundred forty-eight million, nine hundred forty-three thousand, six hundred twenty-one".