80477748 has 72 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 24641856.

The previous prime is 80477743. The next prime is 80477777. The reversal of 80477748 is 84777408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80477743) 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, 167773 + ... + 168251.

It is an arithmetic number, because the mean of its divisors is an integer number (3057600).

Almost surely, 2^80477748 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 80477748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110073600).

80477748 is an abundant number, since it is smaller than the sum of its proper divisors (139669452).

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

80477748 is a wasteful number, since it uses less digits than its factorization.

80477748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 80477748 is about 8970.9390812779. The cubic root of 80477748 is about 431.7429669558.

It can be divided in two parts, 80477 and 748, that added together give a square (81225 = 285²).

The spelling of 80477748 in words is "eighty million, four hundred seventy-seven thousand, seven hundred forty-eight".