806990670 has 48 divisors (see below), whose sum is σ = 2107010880. Its totient is φ = 214291392.

The previous prime is 806990651. The next prime is 806990671. The reversal of 806990670 is 76099608.

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 (806990671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 40268.

It is an arithmetic number, because the mean of its divisors is an integer number (43896060).

Almost surely, 2^806990670 is an apocalyptic number.

806990670 is an abundant number, since it is smaller than the sum of its proper divisors (1300020210).

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

806990670 is a wasteful number, since it uses less digits than its factorization.

806990670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37769 (or 37766 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 806990670 is about 28407.5812064315. The cubic root of 806990670 is about 931.0139132776.

The spelling of 806990670 in words is "eight hundred six million, nine hundred ninety thousand, six hundred seventy".