80713746 has 40 divisors (see below), whose sum is σ = 182686284. Its totient is φ = 26632800.

The previous prime is 80713741. The next prime is 80713751. The reversal of 80713746 is 64731708.

It is an interprime number because it is at equal distance from previous prime (80713741) and next prime (80713751).

It can be written as a sum of positive squares in 2 ways, for example, as 77633721 + 3080025 = 8811^2 + 1755^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80713746.

It is not an unprimeable number, because it can be changed into a prime (80713741) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13896 + ... + 18828.

Almost surely, 2^80713746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80713746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91343142).

80713746 is an abundant number, since it is smaller than the sum of its proper divisors (101972538).

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

80713746 is a wasteful number, since it uses less digits than its factorization.

80713746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 80713746 is about 8984.0829248176. The cubic root of 80713746 is about 432.1645784965.

The spelling of 80713746 in words is "eighty million, seven hundred thirteen thousand, seven hundred forty-six".