990535498 has 32 divisors (see below), whose sum is σ = 1627734528. Its totient is φ = 450048000.

The previous prime is 990535471. The next prime is 990535499. The reversal of 990535498 is 894535099.

It is not an unprimeable number, because it can be changed into a prime (990535499) 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, 617898 + ... + 619498.

It is an arithmetic number, because the mean of its divisors is an integer number (50866704).

Almost surely, 2^990535498 is an apocalyptic number.

990535498 is a deficient number, since it is larger than the sum of its proper divisors (637199030).

990535498 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (990535497) it forms an eRAP, since the sums of their prime factors are consecutive (2237 and 2238).

990535498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The square root of 990535498 is about 31472.7739165139. The cubic root of 990535498 is about 996.8351603566.

The spelling of 990535498 in words is "nine hundred ninety million, five hundred thirty-five thousand, four hundred ninety-eight".