6897634 has 4 divisors (see below), whose sum is σ = 10346454. Its totient is φ = 3448816.

The previous prime is 6897607. The next prime is 6897637. The reversal of 6897634 is 4367986.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 4347225 + 2550409 = 2085^2 + 1597^2 .

It is a super-3 number, since 3×6897634³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1724407 + ... + 1724410.

Almost surely, 2^6897634 is an apocalyptic number.

6897634 is a deficient number, since it is larger than the sum of its proper divisors (3448820).

6897634 is a wasteful number, since it uses less digits than its factorization.

6897634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448819.

The product of its digits is 217728, while the sum is 43.

The square root of 6897634 is about 2626.3347082960. The cubic root of 6897634 is about 190.3560636151.

The spelling of 6897634 in words is "six million, eight hundred ninety-seven thousand, six hundred thirty-four".