749785005 has 24 divisors (see below), whose sum is σ = 1347763872. Its totient is φ = 399884688.

The previous prime is 749784961. The next prime is 749785009. The reversal of 749785005 is 500587947.

749785005 is a `hidden beast` number, since 74 + 9 + 78 + 500 + 5 = 666.

It is not a de Polignac number, because 749785005 - 2¹³ = 749776813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749785009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307339 + ... + 309768.

It is an arithmetic number, because the mean of its divisors is an integer number (56156828).

Almost surely, 2^749785005 is an apocalyptic number.

It is an amenable number.

749785005 is a deficient number, since it is larger than the sum of its proper divisors (597978867).

749785005 is an equidigital number, since it uses as much as digits as its factorization.

749785005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617127 (or 617115 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 749785005 is about 27382.2023402063. The cubic root of 749785005 is about 908.4734721543.

The spelling of 749785005 in words is "seven hundred forty-nine million, seven hundred eighty-five thousand, five".