462783981 has 24 divisors (see below), whose sum is σ = 679819392. Its totient is φ = 279822400.

The previous prime is 462783973. The next prime is 462783983. The reversal of 462783981 is 189387264.

It is not a de Polignac number, because 462783981 - 2³ = 462783973 is a prime.

It is a super-2 number, since 2×462783981² = 428338026140416722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 462783981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (462783983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187900 + ... + 190346.

It is an arithmetic number, because the mean of its divisors is an integer number (28325808).

Almost surely, 2^462783981 is an apocalyptic number.

It is an amenable number.

462783981 is a deficient number, since it is larger than the sum of its proper divisors (217035411).

462783981 is a wasteful number, since it uses less digits than its factorization.

462783981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2982 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 462783981 is about 21512.4145785637. The cubic root of 462783981 is about 773.4984348041.

The spelling of 462783981 in words is "four hundred sixty-two million, seven hundred eighty-three thousand, nine hundred eighty-one".