748468649 has 2 divisors, whose sum is σ = 748468650. Its totient is φ = 748468648.

The previous prime is 748468607. The next prime is 748468661. The reversal of 748468649 is 946864847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629658649 + 118810000 = 25093^2 + 10900^2 .

It is a cyclic number.

It is not a de Polignac number, because 748468649 - 2¹⁶ = 748403113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 748468594 and 748468603.

It is not a weakly prime, because it can be changed into another prime (748468249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374234324 + 374234325.

It is an arithmetic number, because the mean of its divisors is an integer number (374234325).

Almost surely, 2^748468649 is an apocalyptic number.

It is an amenable number.

748468649 is a deficient number, since it is larger than the sum of its proper divisors (1).

748468649 is an equidigital number, since it uses as much as digits as its factorization.

748468649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 56.

The square root of 748468649 is about 27358.1550730308. The cubic root of 748468649 is about 907.9415085359.

The spelling of 748468649 in words is "seven hundred forty-eight million, four hundred sixty-eight thousand, six hundred forty-nine".