290794989 has 8 divisors (see below), whose sum is σ = 393038272. Its totient is φ = 191207520.

The previous prime is 290794961. The next prime is 290794997. The reversal of 290794989 is 989497092.

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

It is not a de Polignac number, because 290794989 - 2¹¹ = 290792941 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 (290794949) 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, 663697 + ... + 664134.

It is an arithmetic number, because the mean of its divisors is an integer number (49129784).

Almost surely, 2^290794989 is an apocalyptic number.

It is an amenable number.

290794989 is a deficient number, since it is larger than the sum of its proper divisors (102243283).

290794989 is a wasteful number, since it uses less digits than its factorization.

290794989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327907.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The square root of 290794989 is about 17052.7120716911. The cubic root of 290794989 is about 662.5148839186.

The spelling of 290794989 in words is "two hundred ninety million, seven hundred ninety-four thousand, nine hundred eighty-nine".