99661703 has 2 divisors, whose sum is σ = 99661704. Its totient is φ = 99661702.

The previous prime is 99661663. The next prime is 99661711. The reversal of 99661703 is 30716699.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99661703 - 2²² = 95467399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99661753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49830851 + 49830852.

It is an arithmetic number, because the mean of its divisors is an integer number (49830852).

Almost surely, 2^99661703 is an apocalyptic number.

99661703 is a deficient number, since it is larger than the sum of its proper divisors (1).

99661703 is an equidigital number, since it uses as much as digits as its factorization.

99661703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 99661703 is about 9983.0708201435. The cubic root of 99661703 is about 463.6348801614.

The spelling of 99661703 in words is "ninety-nine million, six hundred sixty-one thousand, seven hundred three".