80702421 has 8 divisors (see below), whose sum is σ = 108004320. Its totient is φ = 53601072.

The previous prime is 80702407. The next prime is 80702467. The reversal of 80702421 is 12420708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80702421 - 2¹⁴ = 80686037 is a prime.

It is a super-2 number, since 2×80702421² = 13025761510522482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

80702421 is a modest number, since divided by 2421 gives 807 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 80702391 and 80702400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80702491) 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 7 ways as a sum of consecutive naturals, for example, 49195 + ... + 50808.

It is an arithmetic number, because the mean of its divisors is an integer number (13500540).

Almost surely, 2^80702421 is an apocalyptic number.

It is an amenable number.

80702421 is a deficient number, since it is larger than the sum of its proper divisors (27301899).

80702421 is a wasteful number, since it uses less digits than its factorization.

80702421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100275.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 80702421 is about 8983.4526213478. The cubic root of 80702421 is about 432.1443651168.

The spelling of 80702421 in words is "eighty million, seven hundred two thousand, four hundred twenty-one".