696733821 has 24 divisors (see below), whose sum is σ = 1152425664. Its totient is φ = 397350720.

The previous prime is 696733769. The next prime is 696733837. The reversal of 696733821 is 128337696.

696733821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 696733821 - 2⁶ = 696733757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696733861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22210 + ... + 43436.

It is an arithmetic number, because the mean of its divisors is an integer number (48017736).

Almost surely, 2^696733821 is an apocalyptic number.

It is an amenable number.

696733821 is a deficient number, since it is larger than the sum of its proper divisors (455691843).

696733821 is a wasteful number, since it uses less digits than its factorization.

696733821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21761 (or 21758 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 696733821 is about 26395.7159592234. The cubic root of 696733821 is about 886.5208704788.

The spelling of 696733821 in words is "six hundred ninety-six million, seven hundred thirty-three thousand, eight hundred twenty-one".