748646747 has 4 divisors (see below), whose sum is σ = 748819176. Its totient is φ = 748474320.

The previous prime is 748646737. The next prime is 748646749. The reversal of 748646747 is 747646847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747646847 = 1787 ⋅418381.

It is a cyclic number.

It is not a de Polignac number, because 748646747 - 2⁸ = 748646491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748646749) 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, 79529 + ... + 88442.

It is an arithmetic number, because the mean of its divisors is an integer number (187204794).

Almost surely, 2^748646747 is an apocalyptic number.

748646747 is a deficient number, since it is larger than the sum of its proper divisors (172429).

748646747 is a wasteful number, since it uses less digits than its factorization.

748646747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172428.

The product of its digits is 6322176, while the sum is 53.

The square root of 748646747 is about 27361.4098138236. The cubic root of 748646747 is about 908.0135176722.

The spelling of 748646747 in words is "seven hundred forty-eight million, six hundred forty-six thousand, seven hundred forty-seven".