80477670 has 128 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 16542720.

The previous prime is 80477669. The next prime is 80477681. The reversal of 80477670 is 7677408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111571 + ... + 112289.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^80477670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80477670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121927680).

80477670 is an abundant number, since it is smaller than the sum of its proper divisors (163377690).

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

80477670 is a wasteful number, since it uses less digits than its factorization.

80477670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 80477670 is about 8970.9347339059. The cubic root of 80477670 is about 431.7428274722.

The spelling of 80477670 in words is "eighty million, four hundred seventy-seven thousand, six hundred seventy".