80684958 has 16 divisors (see below), whose sum is σ = 170862480. Its totient is φ = 25312896.

The previous prime is 80684957. The next prime is 80684987. The reversal of 80684958 is 85948608.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80684957) 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, 395413 + ... + 395616.

It is an arithmetic number, because the mean of its divisors is an integer number (10678905).

Almost surely, 2^80684958 is an apocalyptic number.

80684958 is an abundant number, since it is smaller than the sum of its proper divisors (90177522).

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

80684958 is a wasteful number, since it uses less digits than its factorization.

80684958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791051.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 80684958 is about 8982.4806150640. The cubic root of 80684958 is about 432.1131926466.

The spelling of 80684958 in words is "eighty million, six hundred eighty-four thousand, nine hundred fifty-eight".