698850990 has 192 divisors, whose sum is σ = 2000194560. Its totient is φ = 175271040.

The previous prime is 698850967. The next prime is 698851039. The reversal of 698850990 is 99058896.

698850990 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3311985 + ... + 3312195.

It is an arithmetic number, because the mean of its divisors is an integer number (10417680).

Almost surely, 2^698850990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698850990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000097280).

698850990 is an abundant number, since it is smaller than the sum of its proper divisors (1301343570).

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

698850990 is a wasteful number, since it uses less digits than its factorization.

698850990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 698850990 is about 26435.7899446943. The cubic root of 698850990 is about 887.4179211272.

The spelling of 698850990 in words is "six hundred ninety-eight million, eight hundred fifty thousand, nine hundred ninety".