990077703 has 16 divisors (see below), whose sum is σ = 1330511616. Its totient is φ = 654863360.

The previous prime is 990077681. The next prime is 990077713. The reversal of 990077703 is 307770099.

It is a cyclic number.

It is not a de Polignac number, because 990077703 - 2¹² = 990073607 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990077713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319600 + ... + 322682.

It is an arithmetic number, because the mean of its divisors is an integer number (83156976).

Almost surely, 2^990077703 is an apocalyptic number.

990077703 is a deficient number, since it is larger than the sum of its proper divisors (340433913).

990077703 is a wasteful number, since it uses less digits than its factorization.

990077703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894.

The product of its (nonzero) digits is 83349, while the sum is 42.

The square root of 990077703 is about 31465.5002026029. The cubic root of 990077703 is about 996.6815678556.

The spelling of 990077703 in words is "nine hundred ninety million, seventy-seven thousand, seven hundred three".