696371537 has 4 divisors (see below), whose sum is σ = 700396980. Its totient is φ = 692346096.

The previous prime is 696371521. The next prime is 696371539. The reversal of 696371537 is 735173696.

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

It can be written as a sum of positive squares in 2 ways, for example, as 280864081 + 415507456 = 16759^2 + 20384^2 .

It is a cyclic number.

It is not a de Polignac number, because 696371537 - 2⁴ = 696371521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 696371491 and 696371500.

It is not an unprimeable number, because it can be changed into a prime (696371539) 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, 2012462 + ... + 2012807.

It is an arithmetic number, because the mean of its divisors is an integer number (175099245).

Almost surely, 2^696371537 is an apocalyptic number.

It is an amenable number.

696371537 is a deficient number, since it is larger than the sum of its proper divisors (4025443).

696371537 is a wasteful number, since it uses less digits than its factorization.

696371537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025442.

The product of its digits is 714420, while the sum is 47.

The square root of 696371537 is about 26388.8525138931. The cubic root of 696371537 is about 886.3671876803.

The spelling of 696371537 in words is "six hundred ninety-six million, three hundred seventy-one thousand, five hundred thirty-seven".