748576639 has 2 divisors, whose sum is σ = 748576640. Its totient is φ = 748576638.

The previous prime is 748576613. The next prime is 748576669. The reversal of 748576639 is 936675847.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 748576639 - 2²⁵ = 715022207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 748576639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748576669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374288319 + 374288320.

It is an arithmetic number, because the mean of its divisors is an integer number (374288320).

Almost surely, 2^748576639 is an apocalyptic number.

748576639 is a deficient number, since it is larger than the sum of its proper divisors (1).

748576639 is an equidigital number, since it uses as much as digits as its factorization.

748576639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 55.

The square root of 748576639 is about 27360.1286363935. The cubic root of 748576639 is about 907.9851727511.

The spelling of 748576639 in words is "seven hundred forty-eight million, five hundred seventy-six thousand, six hundred thirty-nine".