890528417 has 2 divisors, whose sum is σ = 890528418. Its totient is φ = 890528416.

The previous prime is 890528377. The next prime is 890528489. The reversal of 890528417 is 714825098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490888336 + 399640081 = 22156^2 + 19991^2 .

It is a cyclic number.

It is not a de Polignac number, because 890528417 - 2⁸ = 890528161 is a prime.

It is a super-2 number, since 2×890528417² = 1586081722969051778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (890528117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445264208 + 445264209.

It is an arithmetic number, because the mean of its divisors is an integer number (445264209).

Almost surely, 2^890528417 is an apocalyptic number.

It is an amenable number.

890528417 is a deficient number, since it is larger than the sum of its proper divisors (1).

890528417 is an equidigital number, since it uses as much as digits as its factorization.

890528417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 890528417 is about 29841.7227552298. The cubic root of 890528417 is about 962.0905026347.

The spelling of 890528417 in words is "eight hundred ninety million, five hundred twenty-eight thousand, four hundred seventeen".