816984962 has 4 divisors (see below), whose sum is σ = 1225477446. Its totient is φ = 408492480.

The previous prime is 816984953. The next prime is 816984989. The reversal of 816984962 is 269489618.

It is a happy number.

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., 809914681 + 7070281 = 28459^2 + 2659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204246239 + ... + 204246242.

Almost surely, 2^816984962 is an apocalyptic number.

816984962 is a deficient number, since it is larger than the sum of its proper divisors (408492484).

816984962 is a wasteful number, since it uses less digits than its factorization.

816984962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408492483.

The product of its digits is 1492992, while the sum is 53.

The square root of 816984962 is about 28582.9487981909. The cubic root of 816984962 is about 934.8415802978.

The spelling of 816984962 in words is "eight hundred sixteen million, nine hundred eighty-four thousand, nine hundred sixty-two".