748812805 has 24 divisors (see below), whose sum is σ = 975485160. Its totient is φ = 551566080.

The previous prime is 748812791. The next prime is 748812809. The reversal of 748812805 is 508218847.

It can be written as a sum of positive squares in 12 ways, for example, as 570349924 + 178462881 = 23882^2 + 13359^2 .

It is not a de Polignac number, because 748812805 - 2⁵ = 748812773 is a prime.

It is a super-3 number, since 3×748812805³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748812809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429235 + ... + 430975.

It is an arithmetic number, because the mean of its divisors is an integer number (40645215).

Almost surely, 2^748812805 is an apocalyptic number.

It is an amenable number.

748812805 is a deficient number, since it is larger than the sum of its proper divisors (226672355).

748812805 is a wasteful number, since it uses less digits than its factorization.

748812805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 748812805 is about 27364.4441748777. Note that the first 3 decimals coincide. The cubic root of 748812805 is about 908.0806484706.

The spelling of 748812805 in words is "seven hundred forty-eight million, eight hundred twelve thousand, eight hundred five".