80601949 has 2 divisors, whose sum is σ = 80601950. Its totient is φ = 80601948.

The previous prime is 80601931. The next prime is 80602003. The reversal of 80601949 is 94910608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79530724 + 1071225 = 8918^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 80601949 - 2¹¹ = 80599901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80601919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40300974 + 40300975.

It is an arithmetic number, because the mean of its divisors is an integer number (40300975).

Almost surely, 2^80601949 is an apocalyptic number.

It is an amenable number.

80601949 is a deficient number, since it is larger than the sum of its proper divisors (1).

80601949 is an equidigital number, since it uses as much as digits as its factorization.

80601949 is an evil number, because the sum of its binary digits is even.

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

The square root of 80601949 is about 8977.8588204538. The cubic root of 80601949 is about 431.9649552190.

The spelling of 80601949 in words is "eighty million, six hundred one thousand, nine hundred forty-nine".