748921137 has 12 divisors (see below), whose sum is σ = 1008393264. Its totient is φ = 494412360.

The previous prime is 748921133. The next prime is 748921139. The reversal of 748921137 is 731129847.

It is not a de Polignac number, because 748921137 - 2² = 748921133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748921133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20062 + ... + 43592.

It is an arithmetic number, because the mean of its divisors is an integer number (84032772).

Almost surely, 2^748921137 is an apocalyptic number.

It is an amenable number.

748921137 is a deficient number, since it is larger than the sum of its proper divisors (259472127).

748921137 is a wasteful number, since it uses less digits than its factorization.

748921137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23740 (or 23637 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 748921137 is about 27366.4235332277. The cubic root of 748921137 is about 908.1244375407.

The spelling of 748921137 in words is "seven hundred forty-eight million, nine hundred twenty-one thousand, one hundred thirty-seven".