99651983 has 2 divisors, whose sum is σ = 99651984. Its totient is φ = 99651982.

The previous prime is 99651973. The next prime is 99651991. The reversal of 99651983 is 38915699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99651983 - 2¹² = 99647887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99651973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49825991 + 49825992.

It is an arithmetic number, because the mean of its divisors is an integer number (49825992).

Almost surely, 2^99651983 is an apocalyptic number.

99651983 is a deficient number, since it is larger than the sum of its proper divisors (1).

99651983 is an equidigital number, since it uses as much as digits as its factorization.

99651983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 50.

The square root of 99651983 is about 9982.5839841195. The cubic root of 99651983 is about 463.6198069105.

The spelling of 99651983 in words is "ninety-nine million, six hundred fifty-one thousand, nine hundred eighty-three".