696728019 has 32 divisors (see below), whose sum is σ = 1033910080. Its totient is φ = 417021696.

The previous prime is 696728009. The next prime is 696728027. The reversal of 696728019 is 910827696.

It is not a de Polignac number, because 696728019 - 2¹³ = 696719827 is a prime.

It is a super-2 number, since 2×696728019² = 970859864919328722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696728009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242439 + ... + 245295.

It is an arithmetic number, because the mean of its divisors is an integer number (32309690).

Almost surely, 2^696728019 is an apocalyptic number.

696728019 is a deficient number, since it is larger than the sum of its proper divisors (337182061).

696728019 is a wasteful number, since it uses less digits than its factorization.

696728019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 696728019 is about 26395.6060547963. The cubic root of 696728019 is about 886.5184096594.

The spelling of 696728019 in words is "six hundred ninety-six million, seven hundred twenty-eight thousand, nineteen".