748082981 has 4 divisors (see below), whose sum is σ = 780608352. Its totient is φ = 715557612.

The previous prime is 748082971. The next prime is 748083031. The reversal of 748082981 is 189280847.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 189280847 = 7 ⋅27040121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748082981 is a prime.

It is a super-2 number, since 2×748082981² = 1119256292923692722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748082921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16262651 + ... + 16262696.

It is an arithmetic number, because the mean of its divisors is an integer number (195152088).

Almost surely, 2^748082981 is an apocalyptic number.

It is an amenable number.

748082981 is a deficient number, since it is larger than the sum of its proper divisors (32525371).

748082981 is a wasteful number, since it uses less digits than its factorization.

748082981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32525370.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 748082981 is about 27351.1056632086. The cubic root of 748082981 is about 907.7855348925.

The spelling of 748082981 in words is "seven hundred forty-eight million, eighty-two thousand, nine hundred eighty-one".