690298752 has 192 divisors, whose sum is σ = 2168242560. Its totient is φ = 192890880.

The previous prime is 690298733. The next prime is 690298757. The reversal of 690298752 is 257892096.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690298757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713373 + ... + 714339.

It is an arithmetic number, because the mean of its divisors is an integer number (11292930).

Almost surely, 2^690298752 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 690298752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084121280).

690298752 is an abundant number, since it is smaller than the sum of its proper divisors (1477943808).

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

690298752 is a wasteful number, since it uses less digits than its factorization.

690298752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 690298752 is about 26273.5371048513. The cubic root of 690298752 is about 883.7831071118.

The spelling of 690298752 in words is "six hundred ninety million, two hundred ninety-eight thousand, seven hundred fifty-two".