999348772 has 6 divisors (see below), whose sum is σ = 1748860358. Its totient is φ = 499674384.

The previous prime is 999348769. The next prime is 999348793. The reversal of 999348772 is 277843999.

It can be written as a sum of positive squares in only one way, i.e., 689377536 + 309971236 = 26256^2 + 17606^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124918593 + ... + 124918600.

Almost surely, 2^999348772 is an apocalyptic number.

It is an amenable number.

999348772 is a deficient number, since it is larger than the sum of its proper divisors (749511586).

999348772 is a wasteful number, since it uses less digits than its factorization.

999348772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249837197 (or 249837195 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 58.

The square root of 999348772 is about 31612.4781059632. The cubic root of 999348772 is about 999.7828768610.

The spelling of 999348772 in words is "nine hundred ninety-nine million, three hundred forty-eight thousand, seven hundred seventy-two".