749448785 has 8 divisors (see below), whose sum is σ = 908243496. Its totient is φ = 593622400.

The previous prime is 749448743. The next prime is 749448809. The reversal of 749448785 is 587844947.

It can be written as a sum of positive squares in 4 ways, for example, as 158180929 + 591267856 = 12577^2 + 24316^2 .

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

It is not a de Polignac number, because 749448785 - 2¹⁴ = 749432401 is a prime.

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 749448785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741524 + ... + 742533.

It is an arithmetic number, because the mean of its divisors is an integer number (113530437).

Almost surely, 2^749448785 is an apocalyptic number.

It is an amenable number.

749448785 is a deficient number, since it is larger than the sum of its proper divisors (158794711).

749448785 is a wasteful number, since it uses less digits than its factorization.

749448785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484163.

The product of its digits is 9031680, while the sum is 56.

The square root of 749448785 is about 27376.0622624949. The cubic root of 749448785 is about 908.3376587249.

The spelling of 749448785 in words is "seven hundred forty-nine million, four hundred forty-eight thousand, seven hundred eighty-five".