80649234 has 12 divisors (see below), whose sum is σ = 174740046. Its totient is φ = 26883072.

The previous prime is 80649229. The next prime is 80649253. The reversal of 80649234 is 43294608.

It is a happy number.

80649234 is a `hidden beast` number, since 8 + 0 + 649 + 2 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56295009 + 24354225 = 7503^2 + 4935^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2240239 + ... + 2240274.

Almost surely, 2^80649234 is an apocalyptic number.

80649234 is an abundant number, since it is smaller than the sum of its proper divisors (94090812).

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

80649234 is a wasteful number, since it uses less digits than its factorization.

80649234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480521 (or 4480518 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 80649234 is about 8980.4918573539. The cubic root of 80649234 is about 432.0494092150.

The spelling of 80649234 in words is "eighty million, six hundred forty-nine thousand, two hundred thirty-four".