990000734 has 4 divisors (see below), whose sum is σ = 1485001104. Its totient is φ = 495000366.

The previous prime is 990000733. The next prime is 990000743. The reversal of 990000734 is 437000099.

It is a happy number.

990000734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 990000734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990000731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247500182 + ... + 247500185.

It is an arithmetic number, because the mean of its divisors is an integer number (371250276).

Almost surely, 2^990000734 is an apocalyptic number.

990000734 is a deficient number, since it is larger than the sum of its proper divisors (495000370).

990000734 is a wasteful number, since it uses less digits than its factorization.

990000734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495000369.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 990000734 is about 31464.2771091281. The cubic root of 990000734 is about 996.6557397240.

The spelling of 990000734 in words is "nine hundred ninety million, seven hundred thirty-four", and thus it is an aban number.