698648976 has 150 divisors (see below), whose sum is σ = 2097491682. Its totient is φ = 224501760.

The previous prime is 698648969. The next prime is 698649011. The reversal of 698648976 is 679846896.

698648976 is a `hidden beast` number, since 6 + 9 + 86 + 489 + 76 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 256640400 + 442008576 = 16020^2 + 21024^2 .

It is a super-2 number, since 2×698648976² = 976220783331697152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1089616 + ... + 1090256.

Almost surely, 2^698648976 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 698648976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048745841).

698648976 is an abundant number, since it is smaller than the sum of its proper divisors (1398842706).

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

698648976 is a wasteful number, since it uses less digits than its factorization.

698648976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 675 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 698648976 is about 26431.9688256475. The cubic root of 698648976 is about 887.3324054627.

The spelling of 698648976 in words is "six hundred ninety-eight million, six hundred forty-eight thousand, nine hundred seventy-six".