890974313 has 2 divisors, whose sum is σ = 890974314. Its totient is φ = 890974312.

The previous prime is 890974307. The next prime is 890974339. The reversal of 890974313 is 313479098.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890604649 + 369664 = 29843^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 890974313 - 2⁸ = 890974057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (890974303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445487156 + 445487157.

It is an arithmetic number, because the mean of its divisors is an integer number (445487157).

Almost surely, 2^890974313 is an apocalyptic number.

It is an amenable number.

890974313 is a deficient number, since it is larger than the sum of its proper divisors (1).

890974313 is an equidigital number, since it uses as much as digits as its factorization.

890974313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 890974313 is about 29849.1928366581. The cubic root of 890974313 is about 962.2510517792.

The spelling of 890974313 in words is "eight hundred ninety million, nine hundred seventy-four thousand, three hundred thirteen".