80899461 has 6 divisors (see below), whose sum is σ = 116854790. Its totient is φ = 53932968.

The previous prime is 80899457. The next prime is 80899493. The reversal of 80899461 is 16499808.

It can be written as a sum of positive squares in only one way, i.e., 64496961 + 16402500 = 8031^2 + 4050^2 .

It is not a de Polignac number, because 80899461 - 2² = 80899457 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 (80899411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4494406 + ... + 4494423.

Almost surely, 2^80899461 is an apocalyptic number.

It is an amenable number.

80899461 is a deficient number, since it is larger than the sum of its proper divisors (35955329).

80899461 is a wasteful number, since it uses less digits than its factorization.

80899461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988835 (or 8988832 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 80899461 is about 8994.4127657118. The cubic root of 80899461 is about 432.4957817536.

The spelling of 80899461 in words is "eighty million, eight hundred ninety-nine thousand, four hundred sixty-one".