990655948 has 6 divisors (see below), whose sum is σ = 1733647916. Its totient is φ = 495327972.

The previous prime is 990655907. The next prime is 990655949. The reversal of 990655948 is 849556099.

It is a happy number.

990655948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (990655949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123831990 + ... + 123831997.

Almost surely, 2^990655948 is an apocalyptic number.

It is an amenable number.

990655948 is a deficient number, since it is larger than the sum of its proper divisors (742991968).

990655948 is a wasteful number, since it uses less digits than its factorization.

990655948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247663991 (or 247663989 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 990655948 is about 31474.6874170340. The cubic root of 990655948 is about 996.8755640671.

The spelling of 990655948 in words is "nine hundred ninety million, six hundred fifty-five thousand, nine hundred forty-eight".