2685706437 has 8 divisors (see below), whose sum is σ = 3581232480. Its totient is φ = 1790325680.

The previous prime is 2685706409. The next prime is 2685706459. The reversal of 2685706437 is 7346075862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2685706437 - 2²² = 2681512133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685706237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18739 + ... + 75647.

It is an arithmetic number, because the mean of its divisors is an integer number (447654060).

Almost surely, 2^2685706437 is an apocalyptic number.

It is an amenable number.

2685706437 is a deficient number, since it is larger than the sum of its proper divisors (895526043).

2685706437 is a wasteful number, since it uses less digits than its factorization.

2685706437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72643.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The square root of 2685706437 is about 51823.8018385375. The cubic root of 2685706437 is about 1390.0150848043.

The spelling of 2685706437 in words is "two billion, six hundred eighty-five million, seven hundred six thousand, four hundred thirty-seven".