748987345 has 4 divisors (see below), whose sum is σ = 898784820. Its totient is φ = 599189872.

The previous prime is 748987339. The next prime is 748987363. The reversal of 748987345 is 543789847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543789847 = 41 ⋅13263167.

It can be written as a sum of positive squares in 2 ways, for example, as 486158401 + 262828944 = 22049^2 + 16212^2 .

It is a cyclic number.

It is not a de Polignac number, because 748987345 - 2⁵ = 748987313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74898730 + ... + 74898739.

It is an arithmetic number, because the mean of its divisors is an integer number (224696205).

Almost surely, 2^748987345 is an apocalyptic number.

It is an amenable number.

748987345 is a deficient number, since it is larger than the sum of its proper divisors (149797475).

748987345 is a wasteful number, since it uses less digits than its factorization.

748987345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149797474.

The product of its digits is 6773760, while the sum is 55.

The square root of 748987345 is about 27367.6331640133. The cubic root of 748987345 is about 908.1511975150.

The spelling of 748987345 in words is "seven hundred forty-eight million, nine hundred eighty-seven thousand, three hundred forty-five".