80349949 has 2 divisors, whose sum is σ = 80349950. Its totient is φ = 80349948.

The previous prime is 80349943. The next prime is 80349959. The reversal of 80349949 is 94994308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43322724 + 37027225 = 6582^2 + 6085^2 .

It is a cyclic number.

It is not a de Polignac number, because 80349949 - 2⁷ = 80349821 is a prime.

It is a super-2 number, since 2×80349949² = 12912228608605202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80349899 and 80349908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80349943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40174974 + 40174975.

It is an arithmetic number, because the mean of its divisors is an integer number (40174975).

Almost surely, 2^80349949 is an apocalyptic number.

It is an amenable number.

80349949 is a deficient number, since it is larger than the sum of its proper divisors (1).

80349949 is an equidigital number, since it uses as much as digits as its factorization.

80349949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 80349949 is about 8963.8133068466. The cubic root of 80349949 is about 431.5143093316.

The spelling of 80349949 in words is "eighty million, three hundred forty-nine thousand, nine hundred forty-nine".