80618652 has 42 divisors (see below), whose sum is σ = 211534848. Its totient is φ = 26871912.

The previous prime is 80618639. The next prime is 80618663. The reversal of 80618652 is 25681608.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 10908 + ... + 16739.

It is an arithmetic number, because the mean of its divisors is an integer number (5036544).

Almost surely, 2^80618652 is an apocalyptic number.

It is an amenable number.

80618652 is an abundant number, since it is smaller than the sum of its proper divisors (130916196).

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

80618652 is a wasteful number, since it uses less digits than its factorization.

80618652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27669 (or 27652 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 80618652 is about 8978.7890052055. The cubic root of 80618652 is about 431.9947916039.

The spelling of 80618652 in words is "eighty million, six hundred eighteen thousand, six hundred fifty-two".