694400090 has 64 divisors (see below), whose sum is σ = 1331403264. Its totient is φ = 260402688.

The previous prime is 694400089. The next prime is 694400101. The reversal of 694400090 is 90004496.

It is a happy number.

694400090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1269197 + ... + 1269743.

It is an arithmetic number, because the mean of its divisors is an integer number (20803176).

Almost surely, 2^694400090 is an apocalyptic number.

694400090 is a deficient number, since it is larger than the sum of its proper divisors (637003174).

694400090 is a wasteful number, since it uses less digits than its factorization.

694400090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 694400090 is about 26351.4722548855. The cubic root of 694400090 is about 885.5299537986.

The spelling of 694400090 in words is "six hundred ninety-four million, four hundred thousand, ninety".