748443817 has 4 divisors (see below), whose sum is σ = 816484176. Its totient is φ = 680403460.

The previous prime is 748443799. The next prime is 748443821. The reversal of 748443817 is 718344847.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718344847 = 11 ⋅65304077.

It is not a de Polignac number, because 748443817 - 2¹⁵ = 748411049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748443827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34020163 + ... + 34020184.

It is an arithmetic number, because the mean of its divisors is an integer number (204121044).

Almost surely, 2^748443817 is an apocalyptic number.

It is an amenable number.

748443817 is a deficient number, since it is larger than the sum of its proper divisors (68040359).

748443817 is a wasteful number, since it uses less digits than its factorization.

748443817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68040358.

The product of its digits is 602112, while the sum is 46.

The square root of 748443817 is about 27357.7012374944. The cubic root of 748443817 is about 907.9314674773.

The spelling of 748443817 in words is "seven hundred forty-eight million, four hundred forty-three thousand, eight hundred seventeen".