698090377 has 2 divisors, whose sum is σ = 698090378. Its totient is φ = 698090376.

The previous prime is 698090357. The next prime is 698090417. The reversal of 698090377 is 773090896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529506121 + 168584256 = 23011^2 + 12984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698090377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 698090377.

It is not a weakly prime, because it can be changed into another prime (698090347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349045188 + 349045189.

It is an arithmetic number, because the mean of its divisors is an integer number (349045189).

Almost surely, 2^698090377 is an apocalyptic number.

It is an amenable number.

698090377 is a deficient number, since it is larger than the sum of its proper divisors (1).

698090377 is an equidigital number, since it uses as much as digits as its factorization.

698090377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 698090377 is about 26421.3999818329. The cubic root of 698090377 is about 887.0958559835.

The spelling of 698090377 in words is "six hundred ninety-eight million, ninety thousand, three hundred seventy-seven".