80870677 has 4 divisors (see below), whose sum is σ = 80894700. Its totient is φ = 80846656.

The previous prime is 80870653. The next prime is 80870681. The reversal of 80870677 is 77607808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25010001 + 55860676 = 5001^2 + 7474^2 .

It is a cyclic number.

It is not a de Polignac number, because 80870677 - 2¹⁵ = 80837909 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 (80870077) 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, 5938 + ... + 14035.

It is an arithmetic number, because the mean of its divisors is an integer number (20223675).

Almost surely, 2^80870677 is an apocalyptic number.

It is an amenable number.

80870677 is a deficient number, since it is larger than the sum of its proper divisors (24023).

80870677 is a wasteful number, since it uses less digits than its factorization.

80870677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24022.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 80870677 is about 8992.8125188953. The cubic root of 80870677 is about 432.4444817195. Note that the first 4 decimals are identical.

The spelling of 80870677 in words is "eighty million, eight hundred seventy thousand, six hundred seventy-seven".