749481617 has 4 divisors (see below), whose sum is σ = 758511600. Its totient is φ = 740451636.

The previous prime is 749481559. The next prime is 749481659. The reversal of 749481617 is 716184947.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 749481617 - 2⁶ = 749481553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749481697) 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, 4514867 + ... + 4515032.

It is an arithmetic number, because the mean of its divisors is an integer number (189627900).

Almost surely, 2^749481617 is an apocalyptic number.

It is an amenable number.

749481617 is a deficient number, since it is larger than the sum of its proper divisors (9029983).

749481617 is an equidigital number, since it uses as much as digits as its factorization.

749481617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029982.

The product of its digits is 338688, while the sum is 47.

The square root of 749481617 is about 27376.6619038918. The cubic root of 749481617 is about 908.3509227429.

The spelling of 749481617 in words is "seven hundred forty-nine million, four hundred eighty-one thousand, six hundred seventeen".