80625891 has 8 divisors (see below), whose sum is σ = 108506304. Its totient is φ = 53248040.

The previous prime is 80625889. The next prime is 80625893. The reversal of 80625891 is 19852608.

It is an interprime number because it is at equal distance from previous prime (80625889) and next prime (80625893).

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

It is a cyclic number.

It is not a de Polignac number, because 80625891 - 2¹ = 80625889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80625893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125265 + ... + 125906.

It is an arithmetic number, because the mean of its divisors is an integer number (13563288).

Almost surely, 2^80625891 is an apocalyptic number.

80625891 is a deficient number, since it is larger than the sum of its proper divisors (27880413).

80625891 is a wasteful number, since it uses less digits than its factorization.

80625891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251281.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 80625891 is about 8979.1921128796. The cubic root of 80625891 is about 432.0077212697.

The spelling of 80625891 in words is "eighty million, six hundred twenty-five thousand, eight hundred ninety-one".