698631696 has 160 divisors (see below), whose sum is σ = 2315089920. Its totient is φ = 197582976.

The previous prime is 698631649. The next prime is 698631697. The reversal of 698631696 is 696136896.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (698631697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310351 + ... + 312593.

It is an arithmetic number, because the mean of its divisors is an integer number (14469312).

Almost surely, 2^698631696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698631696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157544960).

698631696 is an abundant number, since it is smaller than the sum of its proper divisors (1616458224).

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

698631696 is a wasteful number, since it uses less digits than its factorization.

698631696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370 (or 2358 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 698631696 is about 26431.6419467274. The cubic root of 698631696 is about 887.3250898049.

The spelling of 698631696 in words is "six hundred ninety-eight million, six hundred thirty-one thousand, six hundred ninety-six".