748721693 has 8 divisors (see below), whose sum is σ = 761171040. Its totient is φ = 736373520.

The previous prime is 748721651. The next prime is 748721711. The reversal of 748721693 is 396127847.

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 748721693 - 2⁶ = 748721629 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 (748721893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10298 + ... + 40043.

It is an arithmetic number, because the mean of its divisors is an integer number (95146380).

Almost surely, 2^748721693 is an apocalyptic number.

It is an amenable number.

748721693 is a deficient number, since it is larger than the sum of its proper divisors (12449347).

748721693 is a wasteful number, since it uses less digits than its factorization.

748721693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50587.

The product of its digits is 508032, while the sum is 47.

The square root of 748721693 is about 27362.7793361712. The cubic root of 748721693 is about 908.0438166575.

The spelling of 748721693 in words is "seven hundred forty-eight million, seven hundred twenty-one thousand, six hundred ninety-three".