80878870 has 8 divisors (see below), whose sum is σ = 145581984. Its totient is φ = 32351544.

The previous prime is 80878867. The next prime is 80878871. The reversal of 80878870 is 7887808.

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

It is a super-2 number, since 2×80878870² = 13082783224953800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80878870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80878871) 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, 4043934 + ... + 4043953.

It is an arithmetic number, because the mean of its divisors is an integer number (18197748).

Almost surely, 2^80878870 is an apocalyptic number.

80878870 is a deficient number, since it is larger than the sum of its proper divisors (64703114).

80878870 is a wasteful number, since it uses less digits than its factorization.

80878870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087894.

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 80878870 is about 8993.2680378158. The cubic root of 80878870 is about 432.4590848617.

The spelling of 80878870 in words is "eighty million, eight hundred seventy-eight thousand, eight hundred seventy".