748216988 has 24 divisors (see below), whose sum is σ = 1387999872. Its totient is φ = 351696384.

The previous prime is 748216981. The next prime is 748216991. The reversal of 748216988 is 889612847.

It is a happy number.

It is a super-2 number, since 2×748216988² = 1119657322263584288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748216981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57845 + ... + 69587.

It is an arithmetic number, because the mean of its divisors is an integer number (57833328).

Almost surely, 2^748216988 is an apocalyptic number.

It is an amenable number.

748216988 is a deficient number, since it is larger than the sum of its proper divisors (639782884).

748216988 is a wasteful number, since it uses less digits than its factorization.

748216988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12701 (or 12699 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 748216988 is about 27353.5553082227. Note that the first 3 decimals coincide. The cubic root of 748216988 is about 907.8397367017.

The spelling of 748216988 in words is "seven hundred forty-eight million, two hundred sixteen thousand, nine hundred eighty-eight".