492377881 has 4 divisors (see below), whose sum is σ = 492510564. Its totient is φ = 492245200.

The previous prime is 492377861. The next prime is 492377923. The reversal of 492377881 is 188773294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292410000 + 199967881 = 17100^2 + 14141^2 .

It is a cyclic number.

It is not a de Polignac number, because 492377881 - 2¹⁷ = 492246809 is a prime.

It is a super-2 number, since 2×492377881² = 484871955396100322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492377861) 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, 60610 + ... + 68251.

It is an arithmetic number, because the mean of its divisors is an integer number (123127641).

Almost surely, 2^492377881 is an apocalyptic number.

It is an amenable number.

492377881 is a deficient number, since it is larger than the sum of its proper divisors (132683).

492377881 is a wasteful number, since it uses less digits than its factorization.

492377881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132682.

The product of its digits is 677376, while the sum is 49.

The square root of 492377881 is about 22189.5894734445. The cubic root of 492377881 is about 789.6467367837.

The spelling of 492377881 in words is "four hundred ninety-two million, three hundred seventy-seven thousand, eight hundred eighty-one".