99790253 has 2 divisors, whose sum is σ = 99790254. Its totient is φ = 99790252.

The previous prime is 99790241. The next prime is 99790277. The reversal of 99790253 is 35209799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71199844 + 28590409 = 8438^2 + 5347^2 .

It is a cyclic number.

It is not a de Polignac number, because 99790253 - 2⁴ = 99790237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99790213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49895126 + 49895127.

It is an arithmetic number, because the mean of its divisors is an integer number (49895127).

Almost surely, 2^99790253 is an apocalyptic number.

It is an amenable number.

99790253 is a deficient number, since it is larger than the sum of its proper divisors (1).

99790253 is an equidigital number, since it uses as much as digits as its factorization.

99790253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 99790253 is about 9989.5071449997. The cubic root of 99790253 is about 463.8341364287.

The spelling of 99790253 in words is "ninety-nine million, seven hundred ninety thousand, two hundred fifty-three".