984948690 has 64 divisors (see below), whose sum is σ = 2594737152. Its totient is φ = 237297600.

The previous prime is 984948677. The next prime is 984948739. The reversal of 984948690 is 96849489.

It is a super-2 number, since 2×984948690² = 1940247843865432200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 984948690.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44635 + ... + 62945.

It is an arithmetic number, because the mean of its divisors is an integer number (40542768).

Almost surely, 2^984948690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 984948690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297368576).

984948690 is an abundant number, since it is smaller than the sum of its proper divisors (1609788462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

984948690 is a wasteful number, since it uses less digits than its factorization.

984948690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18495.

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 984948690 is about 31383.8922060346. The cubic root of 984948690 is about 994.9575127267.

The spelling of 984948690 in words is "nine hundred eighty-four million, nine hundred forty-eight thousand, six hundred ninety".