990625606 has 8 divisors (see below), whose sum is σ = 1495911600. Its totient is φ = 491988408.

The previous prime is 990625577. The next prime is 990625609. The reversal of 990625606 is 606526099.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990625609) 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, 1661826 + ... + 1662421.

It is an arithmetic number, because the mean of its divisors is an integer number (186988950).

Almost surely, 2^990625606 is an apocalyptic number.

990625606 is a deficient number, since it is larger than the sum of its proper divisors (505285994).

990625606 is a wasteful number, since it uses less digits than its factorization.

990625606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324398.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 990625606 is about 31474.2054069678. The cubic root of 990625606 is about 996.8653864647.

The spelling of 990625606 in words is "nine hundred ninety million, six hundred twenty-five thousand, six hundred six".