731648694 has 96 divisors (see below), whose sum is σ = 1802805120. Its totient is φ = 196826112.

The previous prime is 731648683. The next prime is 731648707. The reversal of 731648694 is 496846137.

731648694 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-2 number, since 2×731648694² = 1070619622863811272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1267734 + ... + 1268310.

It is an arithmetic number, because the mean of its divisors is an integer number (18779220).

Almost surely, 2^731648694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731648694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901402560).

731648694 is an abundant number, since it is smaller than the sum of its proper divisors (1071156426).

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

731648694 is a wasteful number, since it uses less digits than its factorization.

731648694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 835 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 731648694 is about 27049.0054160962. The cubic root of 731648694 is about 901.0886800839.

The spelling of 731648694 in words is "seven hundred thirty-one million, six hundred forty-eight thousand, six hundred ninety-four".