999973055 has 8 divisors (see below), whose sum is σ = 1202414544. Its totient is φ = 798347200.

The previous prime is 999973033. The next prime is 999973069. The reversal of 999973055 is 550379999.

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

It is a de Polignac number, because none of the positive numbers 2^k-999973055 is a prime.

It is a super-2 number, since 2×999973055² = 1999892221452066050, which contains 22 as substring.

It is a Duffinian number.

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, 201206 + ... + 206115.

It is an arithmetic number, because the mean of its divisors is an integer number (150301818).

Almost surely, 2^999973055 is an apocalyptic number.

999973055 is a deficient number, since it is larger than the sum of its proper divisors (202441489).

999973055 is a wasteful number, since it uses less digits than its factorization.

999973055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407817.

The product of its (nonzero) digits is 3444525, while the sum is 56.

The square root of 999973055 is about 31622.3505609561. The cubic root of 999973055 is about 999.9910182527.

The spelling of 999973055 in words is "nine hundred ninety-nine million, nine hundred seventy-three thousand, fifty-five".