999472705 has 96 divisors (see below), whose sum is σ = 1627766784. Its totient is φ = 574992000.

The previous prime is 999472699. The next prime is 999472709. The reversal of 999472705 is 507274999.

It is a happy number.

It is not a de Polignac number, because 999472705 - 2³ = 999472697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999472709) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3019390 + ... + 3019720.

It is an arithmetic number, because the mean of its divisors is an integer number (16955904).

Almost surely, 2^999472705 is an apocalyptic number.

It is an amenable number.

999472705 is a deficient number, since it is larger than the sum of its proper divisors (628294079).

999472705 is a wasteful number, since it uses less digits than its factorization.

999472705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The square root of 999472705 is about 31614.4382363502. The cubic root of 999472705 is about 999.8242040976.

The spelling of 999472705 in words is "nine hundred ninety-nine million, four hundred seventy-two thousand, seven hundred five".