999428701 has 8 divisors (see below), whose sum is σ = 1010709504. Its totient is φ = 988211280.

The previous prime is 999428693. The next prime is 999428707. The reversal of 999428701 is 107824999.

999428701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 999428701 - 2³ = 999428693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999428707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16231 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (126338688).

Almost surely, 2^999428701 is an apocalyptic number.

It is an amenable number.

999428701 is a deficient number, since it is larger than the sum of its proper divisors (11280803).

999428701 is a wasteful number, since it uses less digits than its factorization.

999428701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31691.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 999428701 is about 31613.7422808500. The cubic root of 999428701 is about 999.8095307238.

The spelling of 999428701 in words is "nine hundred ninety-nine million, four hundred twenty-eight thousand, seven hundred one".