80247429 has 40 divisors (see below), whose sum is σ = 128406168. Its totient is φ = 49766400.

The previous prime is 80247397. The next prime is 80247439. The reversal of 80247429 is 92474208.

It can be written as a sum of positive squares in 4 ways, for example, as 68856804 + 11390625 = 8298^2 + 3375^2 .

It is not a de Polignac number, because 80247429 - 2⁵ = 80247397 is a prime.

It is a super-2 number, since 2×80247429² = 12879299722220082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80247393 and 80247402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80247439) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138789 + ... + 139365.

Almost surely, 2^80247429 is an apocalyptic number.

It is an amenable number.

80247429 is a deficient number, since it is larger than the sum of its proper divisors (48158739).

80247429 is a wasteful number, since it uses less digits than its factorization.

80247429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 80247429 is about 8958.0929332085. The cubic root of 80247429 is about 431.3307055005.

The spelling of 80247429 in words is "eighty million, two hundred forty-seven thousand, four hundred twenty-nine".