816614964 has 54 divisors (see below), whose sum is σ = 2268949410. Its totient is φ = 247457760.

The previous prime is 816614959. The next prime is 816614969. The reversal of 816614964 is 469416618.

It is an interprime number because it is at equal distance from previous prime (816614959) and next prime (816614969).

It can be written as a sum of positive squares in only one way, i.e., 742998564 + 73616400 = 27258^2 + 8580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816614969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 89379 + ... + 98090.

Almost surely, 2^816614964 is an apocalyptic number.

It is an amenable number.

816614964 is an abundant number, since it is smaller than the sum of its proper divisors (1452334446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816614964 is a wasteful number, since it uses less digits than its factorization.

816614964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187501 (or 187485 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 816614964 is about 28576.4757099262. The cubic root of 816614964 is about 934.7004345974.

The spelling of 816614964 in words is "eight hundred sixteen million, six hundred fourteen thousand, nine hundred sixty-four".