290898397 has 8 divisors (see below), whose sum is σ = 303282144. Its totient is φ = 278770128.

The previous prime is 290898367. The next prime is 290898409. The reversal of 290898397 is 793898092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 290898397 - 2¹¹ = 290896349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290898337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61543 + ... + 66100.

It is an arithmetic number, because the mean of its divisors is an integer number (37910268).

Almost surely, 2^290898397 is an apocalyptic number.

It is an amenable number.

290898397 is a deficient number, since it is larger than the sum of its proper divisors (12383747).

290898397 is a wasteful number, since it uses less digits than its factorization.

290898397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127739.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 290898397 is about 17055.7438125694. The cubic root of 290898397 is about 662.5934056981.

The spelling of 290898397 in words is "two hundred ninety million, eight hundred ninety-eight thousand, three hundred ninety-seven".