748776906 has 64 divisors (see below), whose sum is σ = 1702166400. Its totient is φ = 243911808.

The previous prime is 748776859. The next prime is 748776907. The reversal of 748776906 is 609677847.

748776906 is a `hidden beast` number, since 7 + 487 + 76 + 90 + 6 = 666.

748776906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (748776907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 627046 + ... + 628238.

It is an arithmetic number, because the mean of its divisors is an integer number (26596350).

Almost surely, 2^748776906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 748776906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851083200).

748776906 is an abundant number, since it is smaller than the sum of its proper divisors (953389494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

748776906 is a wasteful number, since it uses less digits than its factorization.

748776906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 748776906 is about 27363.7882245862. The cubic root of 748776906 is about 908.0661367405.

The spelling of 748776906 in words is "seven hundred forty-eight million, seven hundred seventy-six thousand, nine hundred six".