99454279 has 2 divisors, whose sum is σ = 99454280. Its totient is φ = 99454278.

The previous prime is 99454249. The next prime is 99454297. The reversal of 99454279 is 97245499.

Together with next prime (99454297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99454279 - 2⁵ = 99454247 is a prime.

It is a super-2 number, since 2×99454279² = 19782307222819682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99454249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49727139 + 49727140.

It is an arithmetic number, because the mean of its divisors is an integer number (49727140).

Almost surely, 2^99454279 is an apocalyptic number.

99454279 is a deficient number, since it is larger than the sum of its proper divisors (1).

99454279 is an equidigital number, since it uses as much as digits as its factorization.

99454279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 99454279 is about 9972.6766216498. The cubic root of 99454279 is about 463.3130052788.

The spelling of 99454279 in words is "ninety-nine million, four hundred fifty-four thousand, two hundred seventy-nine".