492620851 has 2 divisors, whose sum is σ = 492620852. Its totient is φ = 492620850.

The previous prime is 492620839. The next prime is 492620861. The reversal of 492620851 is 158026294.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492620851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 492620851.

It is not a weakly prime, because it can be changed into another prime (492620801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246310425 + 246310426.

It is an arithmetic number, because the mean of its divisors is an integer number (246310426).

Almost surely, 2^492620851 is an apocalyptic number.

492620851 is a deficient number, since it is larger than the sum of its proper divisors (1).

492620851 is an equidigital number, since it uses as much as digits as its factorization.

492620851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 492620851 is about 22195.0636628959. The cubic root of 492620851 is about 789.7766024317.

The spelling of 492620851 in words is "four hundred ninety-two million, six hundred twenty thousand, eight hundred fifty-one".