283994397 has 8 divisors (see below), whose sum is σ = 420732480. Its totient is φ = 189329580.

The previous prime is 283994357. The next prime is 283994407. The reversal of 283994397 is 793499382.

It is not a de Polignac number, because 283994397 - 2⁸ = 283994141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283994327) 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, 5259129 + ... + 5259182.

It is an arithmetic number, because the mean of its divisors is an integer number (52591560).

Almost surely, 2^283994397 is an apocalyptic number.

283994397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

283994397 is a deficient number, since it is larger than the sum of its proper divisors (136738083).

283994397 is a wasteful number, since it uses less digits than its factorization.

283994397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518320 (or 10518314 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 283994397 is about 16852.1333070920. The cubic root of 283994397 is about 657.3095224286.

The spelling of 283994397 in words is "two hundred eighty-three million, nine hundred ninety-four thousand, three hundred ninety-seven".