6925642 has 8 divisors (see below), whose sum is σ = 10484100. Its totient is φ = 3430944.

The previous prime is 6925631. The next prime is 6925643. The reversal of 6925642 is 2465296.

It can be written as a sum of positive squares in 2 ways, for example, as 6922161 + 3481 = 2631^2 + 59^2 .

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

It is a super-2 number, since 2×6925642² = 95929034224328, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6925598 and 6925607.

It is not an unprimeable number, because it can be changed into a prime (6925643) 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, 15667 + ... + 16102.

Almost surely, 2^6925642 is an apocalyptic number.

6925642 is a deficient number, since it is larger than the sum of its proper divisors (3558458).

6925642 is a wasteful number, since it uses less digits than its factorization.

6925642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31880.

The product of its digits is 25920, while the sum is 34.

The square root of 6925642 is about 2631.6614523909. The cubic root of 6925642 is about 190.6133640483.

The spelling of 6925642 in words is "six million, nine hundred twenty-five thousand, six hundred forty-two".