80634349 has 4 divisors (see below), whose sum is σ = 85377564. Its totient is φ = 75891136.

The previous prime is 80634329. The next prime is 80634353. The reversal of 80634349 is 94343608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32775625 + 47858724 = 5725^2 + 6918^2 .

It is a cyclic number.

It is not a de Polignac number, because 80634349 - 2²¹ = 78537197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80634329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371582 + ... + 2371615.

It is an arithmetic number, because the mean of its divisors is an integer number (21344391).

Almost surely, 2^80634349 is an apocalyptic number.

It is an amenable number.

80634349 is a deficient number, since it is larger than the sum of its proper divisors (4743215).

80634349 is a wasteful number, since it uses less digits than its factorization.

80634349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743214.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 80634349 is about 8979.6630783120. The cubic root of 80634349 is about 432.0228272260.

The spelling of 80634349 in words is "eighty million, six hundred thirty-four thousand, three hundred forty-nine".