80049961 has 16 divisors (see below), whose sum is σ = 84268800. Its totient is φ = 75973968.

The previous prime is 80049911. The next prime is 80049971. The reversal of 80049961 is 16994008.

It is a cyclic number.

It is not a de Polignac number, because 80049961 - 2⁹ = 80049449 is a prime.

It is a super-2 number, since 2×80049961² = 12815992512203042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80049961.

It is not an unprimeable number, because it can be changed into a prime (80049901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352530 + ... + 352756.

It is an arithmetic number, because the mean of its divisors is an integer number (5266800).

Almost surely, 2^80049961 is an apocalyptic number.

It is an amenable number.

80049961 is a deficient number, since it is larger than the sum of its proper divisors (4218839).

80049961 is a wasteful number, since it uses less digits than its factorization.

80049961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 80049961 is about 8947.0643788899. The cubic root of 80049961 is about 430.9766174333.

The spelling of 80049961 in words is "eighty million, forty-nine thousand, nine hundred sixty-one".