696139 has 4 divisors (see below), whose sum is σ = 713160. Its totient is φ = 679120.

The previous prime is 696119. The next prime is 696149. The reversal of 696139 is 931696.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 696139 - 2⁵ = 696107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8449 + ... + 8530.

It is an arithmetic number, because the mean of its divisors is an integer number (178290).

2⁶⁹⁶¹³⁹ is an apocalyptic number.

696139 is a deficient number, since it is larger than the sum of its proper divisors (17021).

696139 is a wasteful number, since it uses less digits than its factorization.

696139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17020.

The product of its digits is 8748, while the sum is 34.

The square root of 696139 is about 834.3494471743. The cubic root of 696139 is about 88.6268516161.

The spelling of 696139 in words is "six hundred ninety-six thousand, one hundred thirty-nine".