290874397 has 8 divisors (see below), whose sum is σ = 317532960. Its totient is φ = 264251760.

The previous prime is 290874391. The next prime is 290874443. The reversal of 290874397 is 793478092.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290874397 is a prime.

It is a super-2 number, since 2×290874397² = 169215829660227218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290874397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290874391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9643 + ... + 25975.

It is an arithmetic number, because the mean of its divisors is an integer number (39691620).

Almost surely, 2^290874397 is an apocalyptic number.

It is an amenable number.

290874397 is a deficient number, since it is larger than the sum of its proper divisors (26658563).

290874397 is a wasteful number, since it uses less digits than its factorization.

290874397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17963.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 290874397 is about 17055.0402227611. The cubic root of 290874397 is about 662.5751832084.

The spelling of 290874397 in words is "two hundred ninety million, eight hundred seventy-four thousand, three hundred ninety-seven".