80870401 has 4 divisors (see below), whose sum is σ = 82751152. Its totient is φ = 78989652.

The previous prime is 80870399. The next prime is 80870417. The reversal of 80870401 is 10407808.

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 80870401 - 2¹ = 80870399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80870401.

It is not an unprimeable number, because it can be changed into a prime (80870501) 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, 940311 + ... + 940396.

It is an arithmetic number, because the mean of its divisors is an integer number (20687788).

Almost surely, 2^80870401 is an apocalyptic number.

It is an amenable number.

80870401 is a deficient number, since it is larger than the sum of its proper divisors (1880751).

80870401 is a wasteful number, since it uses less digits than its factorization.

80870401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880750.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 80870401 is about 8992.7971732937. The cubic root of 80870401 is about 432.4439897620.

The spelling of 80870401 in words is "eighty million, eight hundred seventy thousand, four hundred one".