290772647 has 16 divisors (see below), whose sum is σ = 342420480. Its totient is φ = 244120800.

The previous prime is 290772623. The next prime is 290772649. The reversal of 290772647 is 746277092.

It is not a de Polignac number, because 290772647 - 2¹² = 290768551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 290772598 and 290772607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290772649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12479 + ... + 27152.

It is an arithmetic number, because the mean of its divisors is an integer number (21401280).

Almost surely, 2^290772647 is an apocalyptic number.

290772647 is a deficient number, since it is larger than the sum of its proper divisors (51647833).

290772647 is a wasteful number, since it uses less digits than its factorization.

290772647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39694.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 290772647 is about 17052.0569726939. The cubic root of 290772647 is about 662.4979163100.

The spelling of 290772647 in words is "two hundred ninety million, seven hundred seventy-two thousand, six hundred forty-seven".