80126397 has 12 divisors (see below), whose sum is σ = 124641244. Its totient is φ = 49308480.

The previous prime is 80126393. The next prime is 80126441. The reversal of 80126397 is 79362108.

80126397 is a `hidden beast` number, since 8 + 0 + 12 + 639 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13883076 + 66243321 = 3726^2 + 8139^2 .

It is not a de Polignac number, because 80126397 - 2² = 80126393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80126393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342304 + ... + 342537.

Almost surely, 2^80126397 is an apocalyptic number.

It is an amenable number.

80126397 is a deficient number, since it is larger than the sum of its proper divisors (44514847).

80126397 is a wasteful number, since it uses less digits than its factorization.

80126397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684860 (or 684857 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 80126397 is about 8951.3349283780. The cubic root of 80126397 is about 431.1137469996.

The spelling of 80126397 in words is "eighty million, one hundred twenty-six thousand, three hundred ninety-seven".