485292781 has 4 divisors (see below), whose sum is σ = 489114112. Its totient is φ = 481471452.

The previous prime is 485292763. The next prime is 485292791. The reversal of 485292781 is 187292584.

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.

It is a cyclic number.

It is not a de Polignac number, because 485292781 - 2⁵ = 485292749 is a prime.

It is a super-2 number, since 2×485292781² = 471018166581427922, 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 (485292701) 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, 1910475 + ... + 1910728.

It is an arithmetic number, because the mean of its divisors is an integer number (122278528).

Almost surely, 2^485292781 is an apocalyptic number.

It is an amenable number.

485292781 is a deficient number, since it is larger than the sum of its proper divisors (3821331).

485292781 is a wasteful number, since it uses less digits than its factorization.

485292781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821330.

The product of its digits is 322560, while the sum is 46.

The square root of 485292781 is about 22029.3617928437. The cubic root of 485292781 is about 785.8408672614.

The spelling of 485292781 in words is "four hundred eighty-five million, two hundred ninety-two thousand, seven hundred eighty-one".