690001248 has 96 divisors (see below), whose sum is σ = 1839753216. Its totient is φ = 226418688.

The previous prime is 690001243. The next prime is 690001267. The reversal of 690001248 is 842100096.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×690001248² = 952203444483115008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690001241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3094065 + ... + 3094287.

It is an arithmetic number, because the mean of its divisors is an integer number (19164096).

Almost surely, 2^690001248 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 690001248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919876608).

690001248 is an abundant number, since it is smaller than the sum of its proper divisors (1149751968).

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

690001248 is a wasteful number, since it uses less digits than its factorization.

690001248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 690001248 is about 26267.8748283907. The cubic root of 690001248 is about 883.6561249947.

The spelling of 690001248 in words is "six hundred ninety million, one thousand, two hundred forty-eight".