899507423 has 2 divisors, whose sum is σ = 899507424. Its totient is φ = 899507422.

The previous prime is 899507393. The next prime is 899507429. The reversal of 899507423 is 324705998.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 899507423 - 2⁶ = 899507359 is a prime.

It is a super-2 number, since 2×899507423² = 1618227208064201858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899507429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449753711 + 449753712.

It is an arithmetic number, because the mean of its divisors is an integer number (449753712).

Almost surely, 2^899507423 is an apocalyptic number.

899507423 is a deficient number, since it is larger than the sum of its proper divisors (1).

899507423 is an equidigital number, since it uses as much as digits as its factorization.

899507423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 899507423 is about 29991.7892597291. The cubic root of 899507423 is about 965.3132125117.

The spelling of 899507423 in words is "eight hundred ninety-nine million, five hundred seven thousand, four hundred twenty-three".