67280481 has 6 divisors (see below), whose sum is σ = 97182930. Its totient is φ = 44853648.

The previous prime is 67280471. The next prime is 67280489. The reversal of 67280481 is 18408276.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 16941456 = 7095^2 + 4116^2 .

It is not a de Polignac number, because 67280481 - 2⁵ = 67280449 is a prime.

It is a super-2 number, since 2×67280481² = 9053326247182722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67280489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3737796 + ... + 3737813.

It is an arithmetic number, because the mean of its divisors is an integer number (16197155).

Almost surely, 2^67280481 is an apocalyptic number.

It is an amenable number.

67280481 is a deficient number, since it is larger than the sum of its proper divisors (29902449).

67280481 is a wasteful number, since it uses less digits than its factorization.

67280481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475615 (or 7475612 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 67280481 is about 8202.4679822600. The cubic root of 67280481 is about 406.7207807442.

The spelling of 67280481 in words is "sixty-seven million, two hundred eighty thousand, four hundred eighty-one".