690596441 has 4 divisors (see below), whose sum is σ = 691922484. Its totient is φ = 689270400.

The previous prime is 690596429. The next prime is 690596443. The reversal of 690596441 is 144695096.

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 442218841 + 248377600 = 21029^2 + 15760^2 .

It is a cyclic number.

It is not a de Polignac number, because 690596441 - 2¹⁸ = 690334297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690596392 and 690596401.

It is not an unprimeable number, because it can be changed into a prime (690596443) 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, 662240 + ... + 663281.

It is an arithmetic number, because the mean of its divisors is an integer number (172980621).

Almost surely, 2^690596441 is an apocalyptic number.

It is an amenable number.

690596441 is a deficient number, since it is larger than the sum of its proper divisors (1326043).

690596441 is a wasteful number, since it uses less digits than its factorization.

690596441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326042.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 690596441 is about 26279.2016811775. The cubic root of 690596441 is about 883.9101316783.

The spelling of 690596441 in words is "six hundred ninety million, five hundred ninety-six thousand, four hundred forty-one".