890072251 has 2 divisors, whose sum is σ = 890072252. Its totient is φ = 890072250.

The previous prime is 890072231. The next prime is 890072327. The reversal of 890072251 is 152270098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890072251 - 2⁷ = 890072123 is a prime.

It is a super-2 number, since 2×890072251² = 1584457224000414002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (890072231) 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, 445036125 + 445036126.

It is an arithmetic number, because the mean of its divisors is an integer number (445036126).

Almost surely, 2^890072251 is an apocalyptic number.

890072251 is a deficient number, since it is larger than the sum of its proper divisors (1).

890072251 is an equidigital number, since it uses as much as digits as its factorization.

890072251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 890072251 is about 29834.0786852887. The cubic root of 890072251 is about 961.9262002102.

The spelling of 890072251 in words is "eight hundred ninety million, seventy-two thousand, two hundred fifty-one".