690328894 has 32 divisors (see below), whose sum is σ = 1138406400. Its totient is φ = 312539520.

The previous prime is 690328883. The next prime is 690328901. The reversal of 690328894 is 498823096.

690328894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×690328894³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186837 + ... + 190495.

It is an arithmetic number, because the mean of its divisors is an integer number (35575200).

Almost surely, 2^690328894 is an apocalyptic number.

690328894 is a deficient number, since it is larger than the sum of its proper divisors (448077506).

690328894 is a wasteful number, since it uses less digits than its factorization.

690328894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 690328894 is about 26274.1107175866. The cubic root of 690328894 is about 883.7959704325.

The spelling of 690328894 in words is "six hundred ninety million, three hundred twenty-eight thousand, eight hundred ninety-four".