816473476 has 81 divisors (see below), whose sum is σ = 1811332719. Its totient is φ = 320943168.

The previous prime is 816473461. The next prime is 816473503. The reversal of 816473476 is 674374618.

The square root of 816473476 is 28574.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 263283076 + 553190400 = 16226^2 + 23520^2 .

816473476 is a modest number, since divided by 73476 gives 8164 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5200390 + ... + 5200546.

Almost surely, 2^816473476 is an apocalyptic number.

816473476 is the 28574-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 816473476

816473476 is an abundant number, since it is smaller than the sum of its proper divisors (994859243).

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

816473476 is a wasteful number, since it uses less digits than its factorization.

816473476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 179 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The cubic root of 816473476 is about 934.6464489210.

It can be divided in two parts, 8164 and 73476, that multiplied together give a square (599858064 = 24492²).

The spelling of 816473476 in words is "eight hundred sixteen million, four hundred seventy-three thousand, four hundred seventy-six".