989896351 has 2 divisors, whose sum is σ = 989896352. Its totient is φ = 989896350.

The previous prime is 989896343. The next prime is 989896357. The reversal of 989896351 is 153698989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989896351 - 2³ = 989896343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989896357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494948175 + 494948176.

It is an arithmetic number, because the mean of its divisors is an integer number (494948176).

Almost surely, 2^989896351 is an apocalyptic number.

989896351 is a deficient number, since it is larger than the sum of its proper divisors (1).

989896351 is an equidigital number, since it uses as much as digits as its factorization.

989896351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 58.

The square root of 989896351 is about 31462.6183112595. The cubic root of 989896351 is about 996.6207102643.

The spelling of 989896351 in words is "nine hundred eighty-nine million, eight hundred ninety-six thousand, three hundred fifty-one".