7655906 has 4 divisors (see below), whose sum is σ = 11483862. Its totient is φ = 3827952.

The previous prime is 7655897. The next prime is 7655939. The reversal of 7655906 is 6095567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6095567 = 139 ⋅43853.

It can be written as a sum of positive squares in only one way, i.e., 5480281 + 2175625 = 2341^2 + 1475^2 .

It is a super-2 number, since 2×7655906² = 117225793361672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7655906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913975 + ... + 1913978.

Almost surely, 2^7655906 is an apocalyptic number.

7655906 is a deficient number, since it is larger than the sum of its proper divisors (3827956).

7655906 is a wasteful number, since it uses less digits than its factorization.

7655906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827955.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 7655906 is about 2766.9307906054. The cubic root of 7655906 is about 197.0904271914.

The spelling of 7655906 in words is "seven million, six hundred fifty-five thousand, nine hundred six".