748641563 has 4 divisors (see below), whose sum is σ = 792679320. Its totient is φ = 704603808.

The previous prime is 748641557. The next prime is 748641577. The reversal of 748641563 is 365146847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365146847 = 13 ⋅28088219.

It is a cyclic number.

It is not a de Polignac number, because 748641563 - 2⁴ = 748641547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748643563) 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, 22018853 + ... + 22018886.

It is an arithmetic number, because the mean of its divisors is an integer number (198169830).

Almost surely, 2^748641563 is an apocalyptic number.

748641563 is a deficient number, since it is larger than the sum of its proper divisors (44037757).

748641563 is a wasteful number, since it uses less digits than its factorization.

748641563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44037756.

The product of its digits is 483840, while the sum is 44.

The square root of 748641563 is about 27361.3150816988. The cubic root of 748641563 is about 908.0114218226.

The spelling of 748641563 in words is "seven hundred forty-eight million, six hundred forty-one thousand, five hundred sixty-three".