290627731801 has 9 divisors (see below), whose sum is σ = 319456835103. Its totient is φ = 264201637920.

The previous prime is 290627731789. The next prime is 290627731853. The reversal of 290627731801 is 108137726092.

The square root of 290627731801 is 539099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 580858201 + 290046873600 = 24101^2 + 538560^2 .

It is not a de Polignac number, because 290627731801 - 2¹⁷ = 290627600729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290627731001) 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 in 8 ways as a sum of consecutive naturals, for example, 5905585 + ... + 5954593.

Almost surely, 2^290627731801 is an apocalyptic number.

290627731801 is the 539099-th square number.

290627731801 is the 269550-th centered octagonal number.

It is an amenable number.

290627731801 is a deficient number, since it is larger than the sum of its proper divisors (28829103302).

290627731801 is an frugal number, since it uses more digits than its factorization.

290627731801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98040 (or 49020 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 290627731801 in words is "two hundred ninety billion, six hundred twenty-seven million, seven hundred thirty-one thousand, eight hundred one".