999470071 has 4 divisors (see below), whose sum is σ = 1001156112. Its totient is φ = 997784032.

The previous prime is 999470051. The next prime is 999470111. The reversal of 999470071 is 170074999.

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

It is a cyclic number.

It is not a de Polignac number, because 999470071 - 2²¹ = 997372919 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 (999470041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842131 + ... + 843316.

It is an arithmetic number, because the mean of its divisors is an integer number (250289028).

Almost surely, 2^999470071 is an apocalyptic number.

999470071 is a deficient number, since it is larger than the sum of its proper divisors (1686041).

999470071 is a wasteful number, since it uses less digits than its factorization.

999470071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686040.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 999470071 is about 31614.3965781414. The cubic root of 999470071 is about 999.8233257881.

The spelling of 999470071 in words is "nine hundred ninety-nine million, four hundred seventy thousand, seventy-one".