747440147 has 4 divisors (see below), whose sum is σ = 764822520. Its totient is φ = 730057776.

The previous prime is 747440123. The next prime is 747440159. The reversal of 747440147 is 741044747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741044747 = 1213 ⋅610919.

It is a cyclic number.

It is not a de Polignac number, because 747440147 - 2¹⁶ = 747374611 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 747440147.

It is not an unprimeable number, because it can be changed into a prime (747440117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8691122 + ... + 8691207.

It is an arithmetic number, because the mean of its divisors is an integer number (191205630).

Almost surely, 2^747440147 is an apocalyptic number.

747440147 is a deficient number, since it is larger than the sum of its proper divisors (17382373).

747440147 is a wasteful number, since it uses less digits than its factorization.

747440147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17382372.

The product of its (nonzero) digits is 87808, while the sum is 38.

The square root of 747440147 is about 27339.3516199635. The cubic root of 747440147 is about 907.5254377942.

The spelling of 747440147 in words is "seven hundred forty-seven million, four hundred forty thousand, one hundred forty-seven".