690829824 has 40 divisors (see below), whose sum is σ = 1840417920. Its totient is φ = 230276096.

The previous prime is 690829807. The next prime is 690829847. The reversal of 690829824 is 428928096.

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

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 3 ways as a sum of consecutive naturals, for example, 223344 + ... + 226415.

It is an arithmetic number, because the mean of its divisors is an integer number (46010448).

Almost surely, 2^690829824 is an apocalyptic number.

690829824 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

690829824 is an abundant number, since it is smaller than the sum of its proper divisors (1149588096).

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

690829824 is an equidigital number, since it uses as much as digits as its factorization.

690829824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449780 (or 449764 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 690829824 is about 26283.6417568038. The cubic root of 690829824 is about 884.0096912050.

The spelling of 690829824 in words is "six hundred ninety million, eight hundred twenty-nine thousand, eight hundred twenty-four".