80682421 has 4 divisors (see below), whose sum is σ = 80701632. Its totient is φ = 80663212.

The previous prime is 80682401. The next prime is 80682431. The reversal of 80682421 is 12428608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80682421 - 2⁵ = 80682389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80682401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301 + ... + 12706.

It is an arithmetic number, because the mean of its divisors is an integer number (20175408).

Almost surely, 2^80682421 is an apocalyptic number.

It is an amenable number.

80682421 is a deficient number, since it is larger than the sum of its proper divisors (19211).

80682421 is a wasteful number, since it uses less digits than its factorization.

80682421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19210.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 80682421 is about 8982.3393946121. The cubic root of 80682421 is about 432.1086635800.

The spelling of 80682421 in words is "eighty million, six hundred eighty-two thousand, four hundred twenty-one".