811673460 has 288 divisors, whose sum is σ = 2850906240. Its totient is φ = 192471552.

The previous prime is 811673453. The next prime is 811673507. The reversal of 811673460 is 64376118.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1831999 + ... + 1832441.

It is an arithmetic number, because the mean of its divisors is an integer number (9898980).

Almost surely, 2^811673460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811673460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425453120).

811673460 is an abundant number, since it is smaller than the sum of its proper divisors (2039232780).

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

811673460 is a wasteful number, since it uses less digits than its factorization.

811673460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 811673460 is about 28489.8834676451. The cubic root of 811673460 is about 932.8112644361.

The spelling of 811673460 in words is "eight hundred eleven million, six hundred seventy-three thousand, four hundred sixty".