990267284 has 6 divisors (see below), whose sum is σ = 1732967754. Its totient is φ = 495133640.

The previous prime is 990267281. The next prime is 990267287. The reversal of 990267284 is 482762099.

It is an interprime number because it is at equal distance from previous prime (990267281) and next prime (990267287).

It can be written as a sum of positive squares in only one way, i.e., 932080900 + 58186384 = 30530^2 + 7628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990267281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123783407 + ... + 123783414.

It is an arithmetic number, because the mean of its divisors is an integer number (288827959).

Almost surely, 2^990267284 is an apocalyptic number.

It is an amenable number.

990267284 is a deficient number, since it is larger than the sum of its proper divisors (742700470).

990267284 is a wasteful number, since it uses less digits than its factorization.

990267284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247566825 (or 247566823 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 990267284 is about 31468.5125800378. The cubic root of 990267284 is about 996.7451789671.

The spelling of 990267284 in words is "nine hundred ninety million, two hundred sixty-seven thousand, two hundred eighty-four".