80870073 has 4 divisors (see below), whose sum is σ = 107826768. Its totient is φ = 53913380.

The previous prime is 80870059. The next prime is 80870077. The reversal of 80870073 is 37007808.

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 80870073 - 2¹² = 80865977 is a prime.

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, 13478343 + ... + 13478348.

It is an arithmetic number, because the mean of its divisors is an integer number (26956692).

Almost surely, 2^80870073 is an apocalyptic number.

It is an amenable number.

80870073 is a deficient number, since it is larger than the sum of its proper divisors (26956695).

80870073 is a wasteful number, since it uses less digits than its factorization.

80870073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26956694.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 80870073 is about 8992.7789364579. The cubic root of 80870073 is about 432.4434051153.

The spelling of 80870073 in words is "eighty million, eight hundred seventy thousand, seventy-three".