80820270 has 48 divisors (see below), whose sum is σ = 210845232. Its totient is φ = 21479040.

The previous prime is 80820253. The next prime is 80820287. The reversal of 80820270 is 7202808.

It is an interprime number because it is at equal distance from previous prime (80820253) and next prime (80820287).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28434 + ... + 31146.

It is an arithmetic number, because the mean of its divisors is an integer number (4392609).

Almost surely, 2^80820270 is an apocalyptic number.

80820270 is an abundant number, since it is smaller than the sum of its proper divisors (130024962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80820270 is a wasteful number, since it uses less digits than its factorization.

80820270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057 (or 3054 counting only the distinct ones).

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

The square root of 80820270 is about 8990.0094549450. The cubic root of 80820270 is about 432.3546149497.

The spelling of 80820270 in words is "eighty million, eight hundred twenty thousand, two hundred seventy".