80147421 has 16 divisors (see below), whose sum is σ = 118892800. Its totient is φ = 53361504.

The previous prime is 80147413. The next prime is 80147423. The reversal of 80147421 is 12474108.

It is not a de Polignac number, because 80147421 - 2³ = 80147413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80147423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26625 + ... + 29481.

It is an arithmetic number, because the mean of its divisors is an integer number (7430800).

Almost surely, 2^80147421 is an apocalyptic number.

It is an amenable number.

80147421 is a deficient number, since it is larger than the sum of its proper divisors (38745379).

80147421 is a wasteful number, since it uses less digits than its factorization.

80147421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 80147421 is about 8952.5092013357. The cubic root of 80147421 is about 431.1514496925.

The spelling of 80147421 in words is "eighty million, one hundred forty-seven thousand, four hundred twenty-one".