698650624 has 117 divisors (see below), whose sum is σ = 1653246867. Its totient is φ = 294346752.

The previous prime is 698650621. The next prime is 698650643. The reversal of 698650624 is 426056896.

The square root of 698650624 is 26432.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×698650624² = 976225388831178752, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698650621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11841507 + ... + 11841565.

Almost surely, 2^698650624 is an apocalyptic number.

698650624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

698650624 is the 26432-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698650624

698650624 is an abundant number, since it is smaller than the sum of its proper divisors (954596243).

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

698650624 is an frugal number, since it uses more digits than its factorization.

698650624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The cubic root of 698650624 is about 887.3331031533. Note that the first 3 decimals are identical.

The spelling of 698650624 in words is "six hundred ninety-eight million, six hundred fifty thousand, six hundred twenty-four".