986470831 has 2 divisors, whose sum is σ = 986470832. Its totient is φ = 986470830.

The previous prime is 986470817. The next prime is 986470889. The reversal of 986470831 is 138074689.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 986470831 - 2⁷ = 986470703 is a prime.

It is a super-2 number, since 2×986470831² = 1946249400827661122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986470811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493235415 + 493235416.

It is an arithmetic number, because the mean of its divisors is an integer number (493235416).

Almost surely, 2^986470831 is an apocalyptic number.

986470831 is a deficient number, since it is larger than the sum of its proper divisors (1).

986470831 is an equidigital number, since it uses as much as digits as its factorization.

986470831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 986470831 is about 31408.1331982657. The cubic root of 986470831 is about 995.4697851443.

The spelling of 986470831 in words is "nine hundred eighty-six million, four hundred seventy thousand, eight hundred thirty-one".