80646236 has 24 divisors (see below), whose sum is σ = 158125296. Its totient is φ = 35665920.

The previous prime is 80646233. The next prime is 80646253. The reversal of 80646236 is 63264608.

It is a junction number, because it is equal to n+sod(n) for n = 80646196 and 80646205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80646233) 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, 23141 + ... + 26396.

It is an arithmetic number, because the mean of its divisors is an integer number (6588554).

Almost surely, 2^80646236 is an apocalyptic number.

It is an amenable number.

80646236 is a deficient number, since it is larger than the sum of its proper divisors (77479060).

80646236 is a wasteful number, since it uses less digits than its factorization.

80646236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49589 (or 49587 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 80646236 is about 8980.3249384418. The cubic root of 80646236 is about 432.0440555779.

The spelling of 80646236 in words is "eighty million, six hundred forty-six thousand, two hundred thirty-six".