890604677 has 2 divisors, whose sum is σ = 890604678. Its totient is φ = 890604676.

The previous prime is 890604629. The next prime is 890604707. The reversal of 890604677 is 776406098.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883813441 + 6791236 = 29729^2 + 2606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890604677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890609677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445302338 + 445302339.

It is an arithmetic number, because the mean of its divisors is an integer number (445302339).

Almost surely, 2^890604677 is an apocalyptic number.

It is an amenable number.

890604677 is a deficient number, since it is larger than the sum of its proper divisors (1).

890604677 is an equidigital number, since it uses as much as digits as its factorization.

890604677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 890604677 is about 29843.0004691217. Note that the first 3 decimals coincide. The cubic root of 890604677 is about 962.1179645798.

The spelling of 890604677 in words is "eight hundred ninety million, six hundred four thousand, six hundred seventy-seven".