806991480 has 144 divisors (see below), whose sum is σ = 2661895080. Its totient is φ = 212027904.

The previous prime is 806991469. The next prime is 806991481. The reversal of 806991480 is 84199608.

806991480 is a `hidden beast` number, since 80 + 6 + 9 + 91 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806991481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2851419 + ... + 2851701.

Almost surely, 2^806991480 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 806991480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330947540).

806991480 is an abundant number, since it is smaller than the sum of its proper divisors (1854903600).

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

806991480 is a wasteful number, since it uses less digits than its factorization.

806991480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 806991480 is about 28407.5954631855. The cubic root of 806991480 is about 931.0142247728.

The spelling of 806991480 in words is "eight hundred six million, nine hundred ninety-one thousand, four hundred eighty".