828396146 has 4 divisors (see below), whose sum is σ = 1242594222. Its totient is φ = 414198072.

The previous prime is 828396139. The next prime is 828396157. The reversal of 828396146 is 641693828.

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

It can be written as a sum of positive squares in only one way, i.e., 821452921 + 6943225 = 28661^2 + 2635^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 828396146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207099035 + ... + 207099038.

Almost surely, 2^828396146 is an apocalyptic number.

828396146 is a deficient number, since it is larger than the sum of its proper divisors (414198076).

828396146 is a wasteful number, since it uses less digits than its factorization.

828396146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414198075.

The product of its digits is 497664, while the sum is 47.

The square root of 828396146 is about 28781.8718293304. The cubic root of 828396146 is about 939.1739181243.

The spelling of 828396146 in words is "eight hundred twenty-eight million, three hundred ninety-six thousand, one hundred forty-six".