9699990 has 16 divisors (see below), whose sum is σ = 23280048. Its totient is φ = 2586656.

The previous prime is 9699973. The next prime is 9700003. The reversal of 9699990 is 999969.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161637 + ... + 161696.

It is an arithmetic number, because the mean of its divisors is an integer number (1455003).

Almost surely, 2^9699990 is an apocalyptic number.

9699990 is an abundant number, since it is smaller than the sum of its proper divisors (13580058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9699990 is a wasteful number, since it uses less digits than its factorization.

9699990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323343.

The product of its (nonzero) digits is 354294, while the sum is 51.

The square root of 9699990 is about 3114.4806950758. The cubic root of 9699990 is about 213.2670502629.

The spelling of 9699990 in words is "nine million, six hundred ninety-nine thousand, nine hundred ninety".