493897982 has 4 divisors (see below), whose sum is σ = 740846976. Its totient is φ = 246948990.

The previous prime is 493897981. The next prime is 493897993. The reversal of 493897982 is 289798394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289798394 = 2 ⋅144899197.

It is a super-3 number, since 3×493897982³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493897981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123474494 + ... + 123474497.

It is an arithmetic number, because the mean of its divisors is an integer number (185211744).

Almost surely, 2^493897982 is an apocalyptic number.

493897982 is a deficient number, since it is larger than the sum of its proper divisors (246948994).

493897982 is a wasteful number, since it uses less digits than its factorization.

493897982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246948993.

The product of its digits is 7838208, while the sum is 59.

The square root of 493897982 is about 22223.8156489834. The cubic root of 493897982 is about 790.4585182061.

The spelling of 493897982 in words is "four hundred ninety-three million, eight hundred ninety-seven thousand, nine hundred eighty-two".