694785152 has 32 divisors (see below), whose sum is σ = 1391835900. Its totient is φ = 345461760.

The previous prime is 694785107. The next prime is 694785187. The reversal of 694785152 is 251587496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 681418816 + 13366336 = 26104^2 + 3656^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 694785097 and 694785106.

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, 8174 + ... + 38162.

Almost surely, 2^694785152 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 694785152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695917950).

694785152 is an abundant number, since it is smaller than the sum of its proper divisors (697050748).

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

694785152 is a wasteful number, since it uses less digits than its factorization.

694785152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30184 (or 30172 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 694785152 is about 26358.7775133825. Note that the first 3 decimals coincide. The cubic root of 694785152 is about 885.6936062958.

The spelling of 694785152 in words is "six hundred ninety-four million, seven hundred eighty-five thousand, one hundred fifty-two".