748073987 has 4 divisors (see below), whose sum is σ = 766319736. Its totient is φ = 729828240.

The previous prime is 748073981. The next prime is 748074007. The reversal of 748073987 is 789370847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 748073987 - 2⁸ = 748073731 is a prime.

It is a super-2 number, since 2×748073987² = 1119229380052152338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748073981) 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 3 ways as a sum of consecutive naturals, for example, 9122813 + ... + 9122894.

It is an arithmetic number, because the mean of its divisors is an integer number (191579934).

Almost surely, 2^748073987 is an apocalyptic number.

748073987 is a deficient number, since it is larger than the sum of its proper divisors (18245749).

748073987 is a wasteful number, since it uses less digits than its factorization.

748073987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18245748.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The square root of 748073987 is about 27350.9412452296. The cubic root of 748073987 is about 907.7818968576.

The spelling of 748073987 in words is "seven hundred forty-eight million, seventy-three thousand, nine hundred eighty-seven".